Footwear with a removable sole and method for manufacturing such footwear

Abstract

The present invention relates to a shoe (1), in particular a sports shoe, comprising: an upper (10) including a textile sock (100); an insole (14) disposed inside the textile sock (100); an outsole (12) reversibly fixed to the insole (14); the outsole (12) being produced at least in part by means of an additive manufacturing process. Figure 1

Description

Title of the invention: Shoe comprising a removable sole and method for manufacturing such a shoe

[0001] The present application relates to a footwear article, such as a sports shoe, allowing simplified assembly, in particular without glue and without stitching, in particular with the aim of making the shoe easily detachable.

[0002] Conventional footwear generally comprises an upper and an outsole. The upper is secured to the sole structure and forms a foot-receiving volume inside the shoe, comfortably receiving and securing the foot. The sole structure is connected to the upper at its lower end. In footwear designed for sports, the outsole may include a tread and a midsole. The midsole generally comprises a polymer material designed to absorb shocks from the ground upon impact, thereby mitigating the effects on the foot and leg during walking, running, or other ambulatory activities. The outsole may also include a lining positioned within the foot-receiving volume and near the underside of the foot to enhance the comfort of the footwear.The soles are traditionally attached to the uppers using a construction method called Strobel, in which the various sole components (insole, midsole and outsole in particular) are glued and / or stitched.

[0003] Shoes manufactured using known processes have the disadvantage that the outsole cannot be separated from the upper because it is glued and / or stitched to the latter. It is therefore not possible to easily separate the upper and the outsole, nor to separate these two elements in a non-destructive manner.

[0004] The present invention is based on the observation that providing a shoe whose outsole could be easily separated from the upper would, on the one hand, facilitate possible repair or recycling operations of such a shoe, and, on the other hand, allow for the consideration of a modular shoe, whose outsole could be easily changed, for example according to the type of use envisaged.

[0005] To this end, the invention relates to a shoe, in particular a sports shoe, comprising: - an upper incorporating a textile sock; - an insole placed inside the textile slipper; - an outsole reversibly attached to the insole;

[0006] the outsole being produced at least in part by means of an additive manufacturing process.

[0007] Thus, the shoe according to the invention allows for a reversible attachment of the outsole to the insole, and therefore to the upper. This attachment is achieved without glue or stitching, which simplifies the assembly of the shoe and also makes the shoe detachable. Each of the main components of the shoe (outsole, insole, and upper) can therefore be easily and quickly replaced, particularly in the event of excessive wear. Furthermore, components such as the outsole and the upper can be changed, for example, to allow the user to use an insole adapted to a particular sporting activity, or to use an upper adapted to the day's weather conditions.Because the outsole is reversibly attached to the rest of the shoe, notably without glue or stitching, for example by means of an elastic snap-fit ​​(or clip) fastening, disassembling and reassembling the shoe is quick and easy, allowing the user to perform these operations themselves without professional assistance. Furthermore, by enabling easy separation of the various components of the shoe conforming to the invention, the recycling process is facilitated when the shoe reaches the end of its life. Finally, since the outsole is manufactured using an additive manufacturing process, it is possible to produce it and its various components (outsole, midsole, any reinforcements, etc.) from a single material, simplifying shoe recycling, and in a single manufacturing operation, thus simplifying production.

[0008] According to other features of the invention, the shoe according to the invention comprises one or more of the following optional features, considered alone or in all possible combinations:

[0009] In an embodiment, wherein the outsole comprises a body produced by means of an additive manufacturing process, the body comprising an internal structure formed by a three-dimensional lattice structure.

[0010] In one embodiment, the body comprises an external structure, or external skin, the external structure forming the external surface of the body, the external structure being connected to the internal structure by an intermediate structure.

[0011] In an embodiment, the internal structure is formed by the repetition of one or more elementary motifs, for example a vintile type motif.

[0012] In one embodiment, the intermediate structure comprises connecting beams, each connecting beam linking a node of an elementary motif to the external structure.

[0013] In one embodiment, the outsole comprises one or more shoe reinforcement elements from among the following reinforcement elements:

[0014]

[0015]

[0016]

[0017]

[0018]

[0019]

[0020]

[0021]

[0022]

[0023] - a heel counter, covering part of the upper located at the back of the shoe; - a front end reinforcement, covering part of the upper located at the front of the shoe; - one or more lateral reinforcements. In one embodiment, the outsole has a peripheral groove formed on a peripheral edge, the insole has a peripheral edge, the attachment of the outsole to the insole is achieved by elastic interlocking of the peripheral edge in the peripheral groove, the part of the textile sock surrounding the peripheral edge of the insole being sandwiched between the peripheral edge of the insole and the peripheral groove of the outsole. In one embodiment, the peripheral edge forms a projection extending from an upper surface of the second part of the outer sole, the peripheral groove forming an open cavity opening onto an inner side of the peripheral edge. In one embodiment, the peripheral edge of the insole is engaged in the peripheral groove over at least 80% of the contour of the insole or over the entire contour of the insole. In one design, the textile slipper has a lower part sandwiched between a lower surface of the insole and an upper surface of the outsole. In one design, the textile slipper is made by knitting. In one embodiment, the textile slipper comprises an external part and an internal part, the external and internal parts being linked together at least at the level of an opening for insertion of the foot. In one design, the insole is positioned inside the inner part of the textile slipper. In one design, the inner and outer parts of the textile slipper have different thicknesses. The invention also relates to a method for manufacturing a shoe conforming to the shoe defined above, the method comprising the steps of: - to knit a textile slipper; - insert the insole inside the textile slipper; - attach the outsole to the insole. In one embodiment, the process includes a shaping step of the textile upper before the insole insertion step, the shaping step being carried out by hot forming of the textile slipper on a form, the textile slipper comprising heat-fusible fibers.

[0024] Other features and advantages of the present invention will become apparent from the following description and from an examination of the accompanying figures in which:

[0025] [Fig-1] [Fig.1] is a schematic side view illustrating a shoe conforming to the invention;

[0026] [Fig.2] [Fig.2] is a schematic perspective view of the shoe in [Fig.1]

[0027] [Fig.3] [Fig.3] is a schematic perspective view illustrating the components of the shoe of [Fig.1], before assembly;

[0028] [Fig.4] [Fig.4] is a schematic perspective view of the upper of the shoe the [Fig.l];

[0029] [Fig. 5] [Fig. 5] is a schematic perspective view illustrating the sole intermediate of the shoe of the [Fig.l];

[0030] [Fig.6] [Fig.6] is a schematic cross-sectional view of the shoe [Fig.1] in an assembly configuration;

[0031] [Fig.7] [Fig.7] is a view analogous to that of [Fig.6] without the rod 10;

[0032] [Fig.8] [Fig.8] is a schematic perspective view illustrating a sole internal, equipped with attachment elements and showing more particularly the underside of the insole;

[0033] [Fig.9] [Fig.9] is a perspective view of a configured midsole to cooperate with the insole of the [Fig.8];

[0034] [Fig. 10] [Fig. 10] is a schematic perspective view of a configured rod to cooperate with the insole of [Fig.8] and the midsole of [Fig.9];

[0035] [Fig. 11] [Fig. 11] is a schematic view of the underside of a textile slipper made of manufacturing process, following a knitting stage;

[0036] [Fig. 12] [Fig. 12] is a schematic view of the underside of a textile slipper made of manufacturing process, following a turning stage;

[0037] [Fig. 13] [Fig. 13] is a schematic view of the underside of a textile slipper made of manufacturing process, following a stage of forming the openings;

[0038] [Fig. 14] [Fig. 14] is a schematic view of an intermediate sole conforming to the invention;

[0039] [Fig. 15] [Fig. 15] is a partial cross-sectional view of the sole exterior of the [Fig. 15];

[0040] [Fig. 16] [Fig. 16] is a schematic perspective view of an elementary motif of the internal structure of the sole of the [Fig. 14].

[0041] Figures 1 to 7 illustrate a shoe 1 according to the invention, in the example a sports shoe, and more particularly a shoe adapted for the practice of running.

[0042] The shoe 1 comprises three main components which are assembled reversibly:

[0043] - a stem 10 comprising a textile sock 100;

[0044] - an outsole 12,

[0045] - an insole 14 (visible on the [Fig.3]).

[0046] The components of the shoe 1 are visible in [Fig. 3], which shows these components unassembled. In the example, the outsole 12 comprises a midsole 12a and an outsole 12b.

[0047] In order to achieve the reversible assembly of the shoe 1, the outsole 12 is reversibly fixed to the outsole 14, a portion of the upper 10 being trapped between the two soles 12, 14. More specifically, the mutual fixing of the outsole 12 and the insole 14 is achieved by elastic interlocking (i.e. by clipping), so as not to require any tools or any additional assembly elements such as glue or stitching.

[0048] In addition, a portion of the upper 10, and more specifically a portion of the textile sock 100, is sandwiched between the insole 14 and the outsole 12. An example of an embodiment of the shoe of [Fig. 1] is described below in relation to Figures 1 to 7.

[0049] As seen in [Fig.5], the outsole 12 (and more specifically, in the example, the intermediate sole 12a) comprises a body 120 having an upper face 122 and a lower face 124. The outsole 12 has a peripheral rim 126 forming a projection extending from the upper face 122, the peripheral rim 126 having a peripheral groove 128.

[0050] As shown in [Fig. 3], the insole 14 has an upper face 140 and a lower face 142. The upper face 140 is designed to receive the foot of a user, either directly or via an additional insole (not shown) placed over the insole 14, generally called a sockliner. The insole 14 has a peripheral edge 144.

[0051] The attachment of the outer sole 12 to the inner sole 14 is achieved by elastic interlocking of the peripheral edge 144 of the inner sole 14 in the peripheral groove 128 provided on the peripheral edge 126 of the outer sole 12 (or, more precisely, in the example of the intermediate sole 12a).

[0052] To enable cooperation between the peripheral edge 144 and the peripheral groove 126 to ensure the desired reversible fixing, at least one and / or the other of these two elements is elastically deformable.

[0053] As can be seen in Figures 6 and 7, the peripheral groove 128 forms an open cavity configured to receive and retain the peripheral edge (and a portion of the textile boot 100 as described in more detail below). The opening of this cavity is oriented inwards, i.e., towards the interior space delimited by the peripheral edge 128. Preferably, the opening of this cavity is oriented in a direction normal to the direction in which the peripheral edge extends from the upper surface 122, or in a direction slightly inclined with respect to this normal direction, for example inclined at most 15°.

[0054] The peripheral edge 144 of the insole 14 has a shape adapted to cooperate with the peripheral groove 128 of the outsole 12. In particular, the peripheral edge 144 may have an end portion 146 forming an overthickness relative to the rest of the insole 14, for example an end portion 146 forming a bead as seen in Figures 6 and 7.

[0055] Furthermore, as mentioned above, a portion of the textile sock 100 is sandwiched between the insole 14 and the outsole 12. More specifically, as shown in [Fig. 6], which represents a cross-sectional view of the shoe of [Fig. 1], the textile sock 100 (partially shown) has a lower portion 102 that is sandwiched between the outsole 12 and the insole 14 when the shoe 1 is assembled. More precisely, the lower portion 102 of the textile sock is sandwiched between the upper face 122 of the outsole 12 and the lower face 142 of the insole 14. In addition, a peripheral portion 104 of the textile sock 100 is sandwiched between the peripheral edge 144 of the insole 14 and the peripheral groove 128 of the outsole 12.This peripheral portion 104, which forms the junction between the lower part 102 of the shoe and the lateral parts 106, ensures the connection between, on the one hand, the upper 10, and, on the other hand, the insole 14 and the outsole 12. This configuration ensures that the upper 10 remains in place during use of the shoe, and in particular during deformations of the outsole, especially during the rolling motion of the user's foot.

[0056] By allowing a reversible clip-on attachment between the insole 14 and the outsole 12, this attachment being made so that part of the upper 10 is trapped between the two soles 12, 14, the shoe 1 according to the invention can be easily assembled without additional elements such as glue or stitching. Furthermore, the shoe is easily disassembled. This reversibility of the shoe assembly offers numerous advantages. For example, the main components of the shoe can be easily separated, for instance, for repair purposes. In addition, if one or more of the shoe components has reached a wear limit, recycling the components is facilitated. Moreover, the simplicity The assembly and disassembly process allows these operations to be carried out by a user themselves to change one or more components of the shoe, for example to adapt the outsole to a particular sporting activity.

[0057] Advantageously, in order to strengthen the connection between the insole 14 and the outsole 12, the insole 14 may include one or more additional attachment elements allowing, if necessary, for a more robust attachment of the insole 14 to the outsole 12. Figures 8 to 10 show an example of an embodiment of the upper 10, the outsole 14 and the insole adapted to such a configuration.

[0058] As seen in [Fig.8], the insole 14 may include two attachment elements 146, 147. Each attachment element 146, 147 is in the example intended to be inserted, reversibly, into a respective cavity 130, 131 provided in the outsole 12, visible in [Fig.9].

[0059] Each cavity 130, 131 is open and leads to the upper surface 122 of the outsole 12, the lower part 102 of the textile sock 100 having at each fastening element an opening 108, 109 ([Fig. 10]) through which each corresponding fastening element 146, 147 can extend to be inserted into the corresponding cavity.

[0060] Advantageously, as seen in [Fig.8], the sole comprises at least a first attachment element 146 and a second attachment element 147. The first attachment element 146 can be located at the front part of the insole 14 (i.e. a part of the insole 14 intended to accommodate the forefoot of a user) and the second attachment element 147 can be located at the rear part of the insole 14 (i.e. a part of the insole 14 intended to accommodate the heel of a user).

[0061] Advantageously, the first fastening element 146 forms a hook oriented towards the front of the shoe, and the second fastening element 147 forms a hook oriented towards the rear of the shoe. Thus, as shown in [Fig. 8], the first fastening element 146 comprises a first portion 146a forming a projection extending from the lower surface of the insole 14, and a second portion 146b forming a projection extending from the first portion 146a towards the front of the shoe. The second fastening element 147 comprises a first portion 147a forming a projection extending from the lower surface of the insole 14, and a second portion 147b forming a projection extending from the first portion 147a towards the rear of the shoe. The cavities 130, 131 made in the outsole each have a shape compatible with the corresponding attachment element 146, 147.

[0062] The first attachment element 146 and the second attachment element 147 and the cavities 130, 131 thus have a configuration requiring that the two attachment elements are engaged in their respective cavity 130, 131 by a relative movement with respect to the outer sole in opposite directions.

[0063] This configuration ensures a robust connection between the insole 14 and the outsole 12. In addition, because the first attachment element 146 must be engaged by a relative movement (of the insole 14 with respect to the outsole 12) forward, and the second attachment element 147 must be engaged by a relative movement backward, the connection between the two soles 12, 14 is maintained even during significant deformations of the shoe occurring during the rolling of the foot.

[0064] In one embodiment, the peripheral edge 126 of the outsole 12 may include one or more shoe reinforcement elements from among the following reinforcement elements:

[0065] - a heel counter 132, covering a portion of the upper located at the rear of the Shoe, back part of the upper:

[0066] - a front end reinforcement 133, covering a portion of the rod located at the front of the shoe;

[0067] - lateral reinforcements 134, which may incorporate openings for the passage of shoelaces.

[0068] The peripheral edge 126 of the outsole may include at least one flex notch 126 at a portion of the sole corresponding to the forefoot. Such a notch facilitates the deformation of the outsole 12, and therefore of the shoe as a whole, during the foot's roll-through.

[0069] As mentioned above, the outsole 12 may include a midsole 12a and an outsole 12b. In the example shown in Figures 1 to 7, the midsole 12a and the outsole 12b are joined together by clips. The assembly (and therefore the disassembly) of the outsole 12, and thus of the entire shoe 1, is therefore carried out without tools or additional elements such as glue or stitching.

[0070] According to the invention, the outsole 12 is produced using an additive manufacturing process, for example, using a 3D printer. In this case, all the elements constituting the outsole 12, i.e., the body 120, the peripheral rim 126 and, where applicable, the reinforcing elements 132, 133, 134, can be made from a material. If the outsole 12 includes a midsole 12a and a wear sole 12b, these two elements can also be made from a material. Alternatively, the wear sole 12b can be attached to the midsole 12a, for example, by clipping it to the midsole. The additive manufacturing of the outsole can be made partially or totally on the basis of a thermoplastic material, and in particular a polymer material, for example polyurethane.

[0071] As can be seen more particularly in Figures 14 to 16, the body 120 of the outsole comprises an internal structure 120a formed by a three-dimensional lattice structure, based on elementary motifs 2 (Figures 15 and 16). The internal structure 120a is surrounded by an external structure 120b, or outer skin 120b, which in the example is partially formed by a lattice structure, for example based on triangular elementary motifs.

[0072] As can be seen in [Fig. 15], which is a partial cross-sectional view of the body 120 of the outer footing 12, the internal structure 120a is advantageously connected to the external structure 120b via an intermediate structure 120c, in this example a three-dimensional truss structure. The intermediate structure 120c, or connecting structure, provides the link between the internal structure 120a and the external structure 120b. The intermediate structure 120c is, in this example, a three-dimensional truss structure, comprising connecting beams 140. Each connecting beam 140 links a node of an elementary pattern 2 (an elementary pattern comprising beams, a node connecting at least two beams together) to the external structure 120b.Providing an intermediate structure 120c ensures a connection between the internal structure 120a and the external structure 120b. This connection respects, on the one hand, the mechanical behavior specific to the internal structure 120a, and, on the other hand, the desired visual appearance of the external structure. Providing such an intermediate structure 120c notably prevents alteration, or at least excessive alteration, of the elementary motifs that would be located at the interface between the internal structure 120a and the external structure 120b in the absence of an intermediate structure. Indeed, the absence of a connecting structure could necessitate truncating a significant portion of many elementary motifs, thus altering the overall mechanical behavior of the internal structure 120a. The connecting structure 120c also prevents excessive material aggregates that could impair the mechanical behavior of the internal structure 120a.

[0073] In the example, the lattice structure of the internal structure 120a is formed by the repetition of a basic Vintile-type pattern, this basic pattern being shown in perspective in [Fig. 16]. The use of this pattern makes it possible to give the internal structure 120a the desired elasticity, deformability, damping, and durability properties to impart the desired mechanical behavior to the sole 12. The internal structure 120a can, however, be formed by a lattice structure comprising other basic patterns or several types of basic patterns. In particular, the internal structure 120a can include zones formed by the repetition of different patterns, with the aim of giving the sole 12 cushioning, energy return, and resistance properties that vary depending on the area considered, or even other criteria. The following basic patterns may be used, but are not limited to: diamond pattern, octagonal "edge" pattern, octagonal "vertex" pattern, tetrahedral pattern, etc.

[0074] The mechanical characteristics of the lattice structure of the internal structure 120a can be adapted in particular by modifying parameters of the elementary motif, including in particular the following parameters:

[0075] - size of the elementary motif and number of repetitions on the axis considered (x, y, z axes) visible on [Fig. 16]);

[0076] - the beam diameter, which is determined primarily based on rigidity desired for each beam: for example, it is between 0.5 and 5 mm, or between 1 and 3 mm;

[0077] - the size of the nodes, a node being defined as the intersection of at least two beams: the size of a node is for example between 100% and 130% of the diameter of the beams joining the node, or between 105% and 125%, or even between 110% and 120%;

[0078] - radius of curvature at the intersection between two or more beams: it is by for example, between 1 and 5 mm, or between 2 and 3 mm. Preferably, the radius of curvature is such that it is equal to the beam diameter multiplied by a factor between 1 and 2, and for example equal to 1.5.

[0079] A basic unit 2 of the vinyl type is visible in [Fig. 16]. It is a basic three-dimensional structure, comprising a plurality of hexagonal basic units 20, each basic unit 20 thus comprising six beams 22, some of these beams being common to at least two basic units. Nodes 24 connect two or more beams 22.

[0080] The elementary motif 2, whether of the vinyl type or any other type, can be modified by adjusting several parameters, such as the size and number of repetitions along each x, y, and z direction, the beam diameter 22, the size of the nodes 24, or the radius of curvature at the intersection. The hexagonal geometry of this elementary motif gives a lattice structure, in particular, a high shock absorption capacity and good energy restitution, and can therefore be particularly well-suited for the production of sports shoe soles or shock-absorbing elements for personal protective equipment such as knee pads.

[0081] As seen in figures 7 and 8, the body 120 of the outsole 12 may include an external structure 120b that is partially or totally solid.

[0082] The insole 14 can be produced by molding, in particular by injection molding. Alternatively, the insole can be produced by stamping or by an additive manufacturing process.

[0083] Advantageously, the textile slipper 100 is made by knitting. As shown in [Fig. 11], the textile slipper 100 can be knitted to have a double layer of textile. To this end, the textile slipper being manufactured is knitted to form an outer part 100a and an inner part 100b, the outer and inner parts being joined together at least at an opening 100c for foot insertion. The inner part 100b is then turned inside out, to be placed inside the outer part 100a, to obtain the textile slipper 100 shown in [Fig. 12]. This textile slipper is advantageously shaped by heat, for example by thermocompression on a jig. The shaping allows us to define an internal volume of the textile slipper 100 which takes into account the volume needed for the insertion of the insole 14 and the foot of a user.In order to achieve the hot shaping of the textile slipper 100, the latter contains at least some heat-fusible threads. Advantageously, the inner part 100b and the outer part 100a of the textile slipper 100 have different thicknesses from each other, and / or have locally different thicknesses.

[0084] When the insole 14 has fastening elements 146, 147 as described above, a final complementary manufacturing step of the textile slipper consists of providing the openings 108, 109 ([Fig. 13]), which are intended to allow the passage of the fastening elements 146, 147.

[0085] When the textile upper 100 is finished, the shoe 1 is assembled simply by inserting the insole 14 into the textile upper 100 to connect the insole 14 to the outsole 12 by clipping. When the outsole 14 has fastening elements 146, 147, it is necessary to first engage the fastening elements 146, 147 in their respective cavities 130, 131 in order to finalize the clipping of the two outsoles 12, 14.

Claims

Demands

1. Footwear (1), in particular sports footwear, comprising: - an upper (10) comprising a textile sock (100); - an insole (14) disposed inside the textile sock (100); - an outsole (12) reversibly fixed to the insole (14);the outsole (12) being made at least in part by means of an additive manufacturing process, the outsole (12) having a peripheral groove (128) formed on a peripheral edge (126), the insole (14) having a peripheral edge (144), the attachment of the outsole (12) to the insole (14) being obtained by elastic interlocking of the peripheral edge (144) in the peripheral groove (128), the part of the textile sock (100) surrounding the peripheral edge (144) of the insole (14) being sandwiched between the peripheral edge (144) of the insole (14) and the peripheral groove (128) of the outsole (12).

2. Shoe (1) according to the preceding claim, wherein the outsole (12) comprises a body (120) produced by means of an additive manufacturing process, the body comprising an internal structure (120a) formed by a three-dimensional lattice structure.

3. Shoe (1) according to the preceding claim, wherein the body (120) comprises an external structure (120b), the external structure (120b) forming the external surface of the body (120), the external structure (120b) being connected to the internal structure (120a) by an intermediate structure (120c).

4. Shoe (1) according to the preceding claim, wherein the internal structure (120a) is formed by the repetition of one or more elementary patterns, for example a vintile type pattern.

5. Shoe (1) according to the preceding claim, wherein the intermediate structure (120c) comprises connecting beams (140), each connecting beam linking a node of an elementary motif (2) to the external structure (120b).

6. Shoe (1) according to any one of claims 1 to 5, wherein the outsole (12) comprises one or more shoe reinforcement elements (1) from among the following reinforcement elements: - a heel counter (132), covering a part of the upper (10) located at the rear of the shoe; - a front end reinforcement (133), covering a part of the upper (10) located at the front of the shoe; - one or more lateral reinforcements (134).

7. Shoe (1) according to any one of the preceding claims, wherein the peripheral edge (126) forms a projection extending from an upper surface (122) of the outsole (12), the peripheral groove (128) forming an open cavity leading to an inner side of the peripheral edge (126).

8. Shoe (1) according to any one of the preceding claims, wherein the peripheral edge (144) of the insole (14) is engaged in the peripheral groove (128) over at least 80% of the contour of the insole (14) or over the entire contour of the insole (14).

9. Shoe (1) according to any one of the preceding claims, wherein the textile sock (100) has a lower part (102) sandwiched between a lower surface (142) of the insole (14) and an upper surface (122) of the outsole (12).

10. Shoe (1) according to any one of the preceding claims, wherein the textile slipper (100) is made by knitting.

11. Shoe (1) according to the preceding claim, wherein the textile sock (100) comprises an outer part (100a) and an inner part (100b), the outer and inner parts being linked together at least at the level of an opening (100c) for insertion of the foot.

12. Shoe (1) according to the preceding claim, wherein the insole (14) is disposed inside the inner part (100b) of the textile sock (100).

13. Shoe (1) according to any one of claims 11 and 12, wherein the inner part (100b) and the outer part (100a) of the textile sock (100) have different thicknesses.

14. A method for manufacturing a shoe (1) according to any one of the preceding claims, the method comprising the steps of: - knit a textile slipper (100); - insert the insole (14) inside the textile slipper (100); - attach the outsole (12) to the insole (14).

15. A manufacturing method according to the preceding claim, comprising a step of shaping the textile slipper (100) before the step of inserting the insole (14), the shaping step being carried out by hot forming the textile slipper (100) on a last, the textile slipper (100) comprising hot-melt fibers.

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