Adaptable to breast shape change and integrally formed seamless sports bra

Abstract

The invention belongs to the technical field of sports underwear, and particularly provides integrally-formed seamless sports underwear capable of adapting to breast shape changes, which comprises an underwear main body, elastic connecting parts and breast pads, the elastic connecting part is integrally formed and arranged on the front surface of the underwear main body; the chest pad is in seamless knitting connection with the elastic connecting part, and the elastic connecting part is located around the chest pad. According to the integrally-formed seamless sports underwear capable of adapting to the breast shape change, the elastic connecting parts are arranged, so that the integrally-formed seamless sports underwear can adapt to different breast sizes, and the universality is high; the breast pad is in seamless knitting connection with the elastic connecting part, discomfort and embarrassment caused by running of the breast pad can be avoided, friction between the breast pad and the breast is reduced, and the breast is effectively protected. The sports underwear adopts a single-layer structure and is good in air permeability; the sweat can be effectively removed, the skin can be kept dry and comfortable in the exercise process, and the wearing comfort is improved.

Description

(19) State Intellectual Property Office (12) Invention Patent Application (10) Application Publication Number (43) Application Publication Date (21) Application Number 202411218992.5 (22) Application Date 2024.09.02 (71) Applicant: Hong Kong Polytechnic University Address: 11 Yuk Choi Road, Hung Hom, Kowloon, Hong Kong, China (72) Inventors: Yi Jielun, Yu Zhihui, Ye Xiaoyun, Lu Jiahui, Guan Meiyu, Li Yayuan (74) Patent Agency: Shenzhen Zhongyi United Intellectual Property Agency Co., Ltd. 44414 Patent Attorney: Tu Hao (51) Int.Cl. A41C 3 / 00 (2006.01) A41C 3 / 12 (2006.01) A41B 17 / 00 (2006.01) (54) Invention Title: Seamless Sports Bra Adaptable to Changes in Breast Shape (57) Abstract: This application belongs to the field of sports bra technology, specifically providing a seamless sports bra adaptable to changes in breast shape and molded in one piece, including a bra body, an elastic connecting part, and a breast pad; the elastic connecting part is integrally molded and disposed on the front of the bra body; the breast pad is seamlessly knitted to the elastic connecting part, and the elastic connecting part is located around the breast pad. The seamless sports bra adaptable to changes in breast shape and molded in one piece provided by this application, by setting the elastic connecting part, can adapt to different breast sizes and has strong versatility; the seamless knitting connection between the breast pad and the elastic connecting part can avoid discomfort and embarrassment caused by the breast pad moving, reduce the friction between the breast pad and the breast, and effectively protect the breast. The sports bra adopts a single-layer structure with good breathability; it can not only effectively wick away sweat, but also keep the skin dry and comfortable during exercise, improving the comfort of wearing. Claims 1 page, Description 6 pages, Drawings 2 pages, CN 121621619 A 2026.03.10 CN 1 21 62 16 19 A 1. A seamless sports bra that adapts to changes in breast shape and is integrally molded, characterized in that it comprises: a bra body; an elastic connecting part, the elastic connecting part being integrally molded on the front of the bra body; and a breast pad, the breast pad being seamlessly knitted to the elastic connecting part, and the elastic connecting part being located around the breast pad. 2. The seamless sports bra that adapts to changes in breast shape and is integrally molded according to claim 1, characterized in that the elastic connecting part is a stretchable yarn knitted structure. 3. The seamless sports bra that adapts to changes in breast shape and is integrally molded according to claim 1, characterized in that the breast pad comprises a first part, a second part, and a third part arranged sequentially from top to bottom, the first part, the second part, and the third part enclosing to form a three-dimensional shape to adapt to the shape of the breast. 4. The seamless sports bra that adapts to changes in breast shape and is integrally molded according to claim 3, characterized in that the...5. The breast pad is a knitted yarn structure, with the yarn density increasing sequentially in the first, second, and third parts. 6. The seamless sports bra that adapts to changes in breast shape and is integrally molded, as described in claim 4, is characterized in that the second part contains elastic fibers. 7. The seamless sports bra that adapts to changes in breast shape and is integrally molded, as described in claim 1, is characterized in that the main body of the bra includes shoulder straps, and the inner side of the shoulder straps is provided with multiple anti-slip particles. 8. The seamless sports bra that adapts to changes in breast shape and is integrally molded, as described in claim 1, is characterized in that the sports bra further includes an underband, the underband being connected to the lower edge of the main body of the bra; the lower edge of the back of the main body of the bra has a notch; the underband has an adjustable back clasp, the back clasp being located at the notch. 9. The seamless sports bra that adapts to changes in breast shape and is integrally molded, as described in claim 7, is characterized in that the underband is a knitted yarn structure. 10. The seamless sports bra that adapts to changes in breast shape and is integrally molded, as described in any one of claims 1-8, is characterized in that the front of the main body of the bra has multiple first ventilation holes. 10. The seamless sports bra that adapts to changes in breast shape and is integrally molded as described in claim 9, characterized in that the back of the main body of the bra is provided with a plurality of second heat dissipation holes. Claims 1 / 1 page 2 CN 121621619 A Seamless sports bra that adapts to changes in breast shape and is integrally molded Technical Field

[0001] This application belongs to the field of sports bra technology, and more specifically, relates to a seamless sports bra that adapts to changes in breast shape and is integrally molded. Background Art

[0002] Sports bras, as an important part of modern women's sports equipment, not only carry the functions of support and protection, but are also a perfect combination of fashion and health. In today's pursuit of a healthy life, more and more women are beginning to pay attention to the selection and use of sports bras.

[0003] For women who love sports, a suitable sports bra can bring many benefits. It can effectively support the chest, reduce the vibration and friction during exercise, thereby protecting the breasts from injury. At the same time, the design of sports bras usually focuses on breathability and sweat-wicking, which can keep the body dry and comfortable during exercise, allowing women to focus more on the exercise itself.

[0004] However, breast size changes during puberty and menstruation. Existing sports bras typically come in multiple sizes, but the size and position of the breast pads are generally fixed. A sports bra can only fit one breast size, resulting in poor versatility. When the breasts enlarge, continuing to wear the same sports bra will compress the breasts, affecting breast development or causing breast pain, thus reducing the comfort of wearing the sports bra.

[0005] The purpose of this application is to provide a seamless, one-piece sports bra that can adapt to changes in breast shape.To address the technical problem in existing technologies where a single sports bra can only fit one breast size, resulting in poor versatility.

[0006] To achieve the above objective, the technical solution adopted in this application is: to provide a seamless sports bra that adapts to changes in breast shape and is integrally molded, comprising a bra body, an elastic connecting part, and a breast pad; the elastic connecting part is integrally molded and disposed on the front of the bra body; the breast pad is seamlessly knitted to the elastic connecting part, and the elastic connecting part is located around the breast pad.

[0007] Optionally, the elastic connecting part is a stretchable yarn knitted structure.

[0008] Optionally, the breast pad comprises a first part and a second part located on both sides of the first part, the first part and the second part forming a three-dimensional shape to adapt to the shape of the breast.

[0009] Optionally, the breast pad is a yarn knitted structure, and the yarn density of the first part is greater than that of the second part.

[0010] Optionally, the bra body includes a shoulder strap, and the inner side of the shoulder strap is provided with multiple anti-slip particles.

[0011] Optionally, the sports bra further includes an underband, which is connected to the lower edge of the main body of the bra; the lower edge of the back of the main body of the bra has a notch; the underband has an adjustable back buckle, which is located at the notch.

[0012] Optionally, the underband is a yarn knitted structure.

[0013] Optionally, the front of the main body of the bra has multiple first heat dissipation holes. Specification 1 / 6 page 3 CN 121621619 A

[0014] Optionally, the back of the main body of the bra has multiple second heat dissipation holes.

[0015] The beneficial effects of the seamless sports bra that adapts to changes in breast shape and is integrally molded provided by this application are as follows:

[0016] (1) Compared with the prior art, the seamless sports bra of this application, by setting an elastic connecting part, when the breasts become larger, the elastic connecting part will be stretched, so that the cup size of the sports bra becomes larger, which can adapt to different breast sizes and has strong versatility; at the same time, it can also reduce the compression of the breasts and improve the wearing comfort.

[0017] (2) Compared with the prior art, the seamless sports bra of this application, by seamlessly connecting the breast pad and the elastic connecting part, can avoid the discomfort and embarrassment caused by the movement of the breast pad during sports activities, and provides strong support for the breast. The elastic structure makes the breast and the breast pad fit more closely, reducing the friction between the breast pad and the breast. The yarn knitted structure can also play a role in cushioning and shock absorption, effectively protecting the breast and improving the comfort of wearing.

[0018] (3) Compared with the prior art, the connection form of the elastic connecting part and the breast pad of the seamless sports bra of this application determines that the sports bra can meet the design requirements with a single-layer structure. The single-layer structure makes the sports bra thinner and lighter, increases the breathability of the sports bra, and can not only effectively wick away sweat, but also keep the skin dry and comfortable during exercise.

[0019] (4) Compared with the prior art, the seamless sports bra of this application, through one-piece molding and seamless design, eliminates the need for separate cup accessories and a large number of seams, which not only gives the sports bra a smooth feel and increases comfort, but also reduces manufacturing processes. Brief Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 is a front structural diagram of a seamless sports bra that adapts to changes in breast shape and is integrally molded, provided in an embodiment of this application;

[0022] Figure 2 is a back structural diagram of a seamless sports bra that adapts to changes in breast shape and is integrally molded, provided in an embodiment of this application;

[0023] Figure 3 is a structural diagram of the breast pad in a seamless sports bra that adapts to changes in breast shape and is integrally molded, provided in an embodiment of this application;

[0024] Figure 4 is a structural diagram of the first part of the breast pad in a seamless sports bra that adapts to changes in breast shape and is integrally molded, provided in an embodiment of this application;

[0025] Figure 5 is a schematic diagram of the second part of the breast pad in a seamless sports bra that adapts to changes in breast shape and is integrally molded, provided in an embodiment of this application.

[0026] Wherein, the reference numerals in the figures are as follows:

[0027] 100 - Underwear body; 110 - Shoulder strap; 120 - Notch; 130 - First heat dissipation hole; 140 - Second heat dissipation hole;

[0028] 200 - Elastic connecting part;

[0029] 300 - Chest pad; 310 - First part; 320 - Second part; 330 - Third part;

[0030] 400 - Bottom band; 410 - Back clasp. Detailed Description

[0031] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application clearer, the following describes this application in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0032] It should be noted that when an element is referred to as "fixed to" or "set on" another element, it can be directly on or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to or indirectly connected to the other element.

[0033] It should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings.The terms "first" and "second" are used only for the purpose of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0035] Please refer to Figures 1 and 2 together, and the seamless sports bra that can adapt to changes in breast shape and is integrally molded, provided by an embodiment of this application, will now be described. The seamless sports bra, which adapts to changes in breast shape and is integrally molded, includes a main body 100, an elastic connecting part 200, and a breast pad 300. The elastic connecting part 200 is integrally molded and disposed on the front of the main body 100. The breast pad 300 is seamlessly knitted to the elastic connecting part 200, and the elastic connecting part 200 is located around the breast pad 300.

[0036] Compared with the prior art, the seamless sports bra that adapts to changes in breast shape and is integrally molded, provided in this application embodiment, by setting the elastic connecting part 200, will be stretched when the breasts enlarge, so that the cup size of the sports bra increases, which can adapt to different breast sizes and has strong versatility; at the same time, it can also reduce the compression of the breasts and improve the wearing comfort.

[0037] Compared with the prior art, the seamless sports bra of this application embodiment, which can adapt to changes in breast shape and is integrally molded, can avoid discomfort and embarrassment caused by the movement of the breast pad 300 during sports activities by seamlessly connecting the breast pad 300 with the elastic connecting part 200, and provides strong support for the breast. The elastic structure makes the breast and the breast pad 300 fit more closely, reducing the friction between the breast pad 300 and the breast. The yarn knitted structure can also play a role in cushioning and shock absorption, effectively protecting the breast and improving the comfort of wearing.

[0038] Compared with the prior art, the seamless sports bra of this application embodiment, which can adapt to changes in breast shape and is integrally molded, has a connection form between the elastic connecting part 200 and the breast pad 300. This means that the sports bra can meet the design requirements with a single-layer structure. The single-layer structure makes the sports bra lighter and thinner, increases the breathability of the sports bra, and can not only effectively wick away sweat, but also keep the skin dry and comfortable during exercise.

[0039] Compared with the prior art, the seamless sports bra of this application, through one-piece molding and seamless design, eliminates the need for separate cup accessories and numerous seams, not only giving the sports bra a smooth feel and increasing comfort, but also reducing manufacturing processes.

[0040] It is understood that existing sports bras typically employ a double-layer structure, with the breast pads 300 placed in the space between the double layers.In this design, the thickness of the sports bra is increased, affecting breathability. Furthermore, the breast pad 300 is not fixed, making it prone to movement during sports activities, affecting the fit between the breast pad 300 and the breast, causing friction between the breast and the breast pad 300, and affecting wearing comfort.

[0041] In one embodiment of this application, the elastic connecting part 200 is a stretchable yarn knitted structure.

[0042] In this embodiment, the elastic connecting part 200 adopts a stretchable yarn knitted structure, possessing excellent elasticity, and can flexibly adapt to various bending and stretching requirements, ensuring the stability of the connection.

[0043] In this embodiment, the stretchable yarn knitted structure can achieve different elastic properties and durability through different weaving methods and material selections. For example, using soft and comfortable yarn materials can provide a better wearing experience, making the sports bra more skin-friendly and soft, and improving wearing comfort.

[0044] Furthermore, the stretchable yarn knitted structure can be further enhanced by adding elastic fibers or elastic yarns. This design allows the elastic connection 200 to quickly return to its original shape when the external force is removed, maintaining the stability and reliability of the connection.

[0045] In this embodiment, the seamless knitted connection between the breast pad 300 and the elastic connection 200 not only ensures overall comfort and fit, but also further improves the stability of the garment. This connection method, through a fine knitting process, makes the connection between the breast pad 300 and the elastic connection 200 almost imperceptible, avoiding the abruptness and discomfort commonly found in traditional breast pads 300, and improving the overall aesthetics of the sports bra.

[0046] At the same time, the seamless knitted connection also enhances the support performance of the breast pad 300. Because the elastic connection 200 has excellent elasticity, it can freely stretch and contract with the movement of the body, ensuring that the breast pad 300 always conforms to the curve of the chest and provides stable support. This design not only improves wearing comfort but also effectively prevents the breast pad 300 from shifting and deforming during wear.

[0047] In addition, the seamlessly knitted breast pad 300 also has good breathability and moisture absorption. The knitted fabric itself has excellent breathability, which can quickly expel heat and moisture from the body, keeping the chest dry and comfortable. At the same time, the fabric material with good moisture absorption can also effectively absorb sweat, preventing the chest from becoming damp and not breathable.

[0048] In one embodiment of this application, please refer to Figure 3. The breast pad 300 includes a first part 310, a second part 320, and a third part 330. The first part 310, the second part 320, and the third part 330 are enclosed to form a three-dimensional shape to adapt to the shape of the chest.

[0049] In this embodiment, through the ingenious combination of the first part 310, the second part 320, and the third part 330, a three-dimensional shape is formed.A perfect three-dimensional shape. This design not only conforms to the curve of a woman's breasts but also provides sufficient support, allowing the wearer to feel comfortable and natural during wear.

[0050] In one embodiment of this application, the breast pad 300 is a yarn knitted structure. Please refer to Figures 4 and 5 together. The yarn density of the first part, the second part, and the third part increases sequentially.

[0051] In one embodiment of this application, the yarn knitted structure of the breast pad 300 is reflected not only in the difference in density but also in the material and weaving method of the yarn. The yarn of the first part 310 uses high-quality cotton yarn with good elasticity and breathability. Through a tight knitting process, the breast pad 300 can fit the body shape better when worn, while maintaining the comfort of the breasts.

[0052] The second part 320 also uses high-quality cotton yarn with good elasticity and breathability, and elastic fibers are added. When the breasts enlarge, the breast pad will be stretched, increasing the fit. In addition, the knitting process of the second part 320 adopts a looser knitting method, forming a unique breathable mesh structure, which not only enhances the breathability of the breast pad 300, but also keeps the chest dry and comfortable during exercise.

[0053] The third part 330 corresponds to the bottom of the breast and adopts a higher density knitting structure to provide sufficient support for the chest, so that the wearer can maintain a firm chest shape in various occasions.

[0054] In one embodiment of this application, please refer to Figures 1 and 2 together. The main body of the underwear 100 includes a shoulder strap 110, and the inner side of the shoulder strap 110 is provided with multiple anti-slip particles.

[0055] In this embodiment, the design of the shoulder strap 110 of the main body of the underwear 100 not only considers comfort and support, but also incorporates the humanized anti-slip design of the manual page 4 / 6 6 CN 121621619 A. Multiple anti-slip particles are cleverly arranged on the inner side of the shoulder strap 110, that is, the part close to the human skin. These anti-slip particles not only have a certain degree of elasticity, but are also made of soft material and will not cause any discomfort to the skin. For example, the anti-slip particles can be made of silicone particles.

[0056] The arrangement of the anti-slip particles is not random, but carefully designed. They are distributed at a certain interval and in a regular pattern on the inside of the shoulder strap 110, which not only ensures the anti-slip effect, but also avoids discomfort caused by excessive density. This design allows the shoulder strap 110 to fit closely to the skin during the wearing and exercise process, and it is not easy to slip off, providing users with a more stable and comfortable exercise experience.

[0057] In one embodiment of this application, please refer to Figures 1 and 2 together. The sports bra also includes a bottom band 400, which is connected to the lower edge of the bra body 100; the lower edge of the back of the bra body 100 is provided with a notch 120; the bottom band 400 is provided with an adjustable back buckle 410, which is located at the notch 120.

[0058] In one embodiment of this application, please continue to refer to Figures 1 and 2. The adjustable back clasp 410 design of the underband 400 not only improves the wearing comfort of the sports bra, but also enhances its adaptability. The back clasp 410 is located at the notch 120, which allows the user to adjust it according to their personal needs to achieve the best wearing effect. The notch 120 provides the necessary space for the adjustment of the back clasp 410, and also provides heat dissipation space to facilitate sweat wicking during exercise.

[0059] In one embodiment of this application, the underband 400 is a yarn knitted structure.

[0060] In this embodiment, the underband 400 adopts a yarn knitted structure, which gives it excellent elasticity and breathability, and also provides the wearer with a more comfortable wearing experience. This knitted structure is not only beautiful and elegant, but more importantly, it can effectively avoid the formation of marks, so that the wearer can still maintain comfort when wearing it for a long time.

[0061] In addition, the yarn knitted structure of the bottom band 400 has good elasticity and can be adaptively adjusted according to different body shapes to ensure the fit and stability of the garment. At the same time, this knitted structure also has a certain degree of wrinkle resistance, and can maintain a flat appearance even after multiple washes and wears, and is not prone to deformation or wrinkling.

[0062] In general, the bottom band 400 with a yarn knitted structure not only has excellent comfort and aesthetics, but also provides more stable support and fixation for the wearer. This design not only meets the daily needs of the wearer, but also improves the practicality and durability of the overall garment.

[0063] In one embodiment of this application, please refer to FIG1, the front of the underwear body 100 is provided with a plurality of first heat dissipation holes 130.

[0064] In this embodiment, the plurality of first heat dissipation holes 130 are distributed in an orderly manner on the front of the underwear body 100, which not only ensures the aesthetics of the underwear, but also effectively improves the heat dissipation effect. Each first heat dissipation hole 130 is carefully designed, with a moderate size and elegant shape, so as not to affect the overall appearance of the underwear, and to give full play to the heat dissipation function.

[0065] In one embodiment of this application, please refer to FIG2, the back of the underwear body 100 is provided with a plurality of second heat dissipation holes 140.

[0066] In this embodiment, a plurality of second heat dissipation holes 140 are arranged on the back of the underwear body 100. These second heat dissipation holes 140 echo the first heat dissipation holes 130 on the front, and together form an efficient heat dissipation system. Through the carefully designed heat dissipation hole layout, the underwear maintains its appearance while ensuring excellent breathability, so that the wearer can stay comfortable and dry in hot weather.

[0067] The embodiment of this application provides a seamless sports underwear that can adapt to changes in breast shape and is integrally molded. By setting the elastic connecting part 200, it can adapt to different breast sizes and has strong versatility; the breast pad 300 and the elastic connecting part 200 are seamlessly knitted.The connection design avoids discomfort and embarrassment caused by the movement of the breast pad 300, reduces friction between the breast pad 300 and the breast, effectively protects the breast, and improves wearing comfort. The sports bra features a single-layer structure with good breathability; it not only effectively wicks away sweat but also keeps the skin dry and comfortable during exercise. The elastic connector 200 and breast pad 300 use a yarn knitted structure, making the sports bra more elastic, soft, and skin-friendly; the seamless knitted connection between the breast pad 300 and the elastic connector 200 not only ensures overall comfort and fit but also further enhances the stability and overall aesthetics of the garment. The anti-slip particles ensure that the shoulder straps 110 fit snugly against the skin and are not prone to slipping. The design of the notch 120, the first ventilation hole 130, and the second ventilation hole 140 further improves breathability and heat dissipation.

[0068] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application. Specification 6 / 6 pages 8 CN 121621619 A Figure 1 Figure 2 Specification Drawings 1 / 2 pages 9 CN 121621619 A Figure 3 Figure 4 Figure 5 Specification Drawings 2 / 2 pages 10 CN 121621619 A ABSTRACT The application relates to the technical field of sports bras, and in particular to a seamless sports bra that can adapt to breast shape changes and is integrally formed. The sports bra includes a bra body, an elastic connecting part, and a bra pad. The elastic connecting part is integrally formed on the front surface of the bra body. The bra pad is seamlessly knitted and connected to the elastic connecting part, and the elastic connecting part is located around the bra pad. By the elasticconnecting part being provided, the adaptable to breast shape change, integrally formed seamless sports bra provided in the present application, can adapt to different breast sizes for enhanced versatility. The bra pad is seamlessly knitted and connected to the elastic connecting part, so that the discomfort and embarrassment caused by the bra pad shifting can be avoided, the friction between the bra pad and the breast is reduced, and the breast is effectively protected. The sports bra has a single-layer structure with good air permeability, which not only effectively wicks away sweat but also keeps the skin dry and comfortable during exercise, enhancing wear comfort.

Claims

1. An integrally formed seamless sportswear garment capable of accommodating changes in chest size, characterized in that, The utility model relates to an underwear, which comprises: a main body of the underwear; an elastic connecting part integrally formed on the front of the main body of the underwear; and a breast pad seamlessly knitted with the elastic connecting part and surrounding the elastic connecting part. The elastic connecting part is a stretchable yarn knitted structure.

2. The seamless sportswear garment of claim 1, wherein, The breast pad comprises a first part, a second part and a third part arranged in sequence from top to bottom, and the first part, the second part and the third part are enclosed to form a three-dimensional shape to adapt to the shape of the breast.

3. The seamless sport bra that accommodates changes in breast shape, in one piece, of claim 1, wherein, The breast pad is a yarn knitted structure, and the yarn density of the first part, the second part and the third part increases in sequence.

4. The seamless sport bra that can adapt to the change of the chest shape, which is integrally formed according to claim 3, wherein, The second part contains elastic fibers.

5. The seamless sport bra that accommodates changes in bust size, formed in one piece, according to claim 4, wherein, The main body of the underwear comprises shoulder straps, and the inner side of the shoulder straps is provided with a plurality of anti-skid particles.

6. The seamless sport bra that accommodates changes in bust size, formed in one piece, according to claim 1, wherein, The sports underwear further comprises a bottom part connected with the lower edge of the main body of the underwear, the lower edge of the back of the main body of the underwear is provided with a notch, and the bottom part is provided with an adjustable back buckle located at the notch.

7. The seamless sport bra that accommodates for changes in bust size, formed in one piece, according to claim 1, wherein, The bottom part is a yarn knitted structure.

8. The seamless sport bra that accommodates changes in breast shape, in one piece, of claim 7, wherein, The front of the main body of the underwear is provided with a plurality of first heat dissipation holes.

9. The seamless sport bra that accommodates changes in breast shape, in one piece, according to any one of claims 1-8, characterized in that, The back of the main body of the underwear is provided with a plurality of second heat dissipation holes.

10. The seamless sport bra that accommodates changes in breast shape, formed in one piece, according to claim 9, characterized in that, ​

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