Athletic Bra Wraparound Straps for Front Tension Adjustment

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Solution Overview

Problem

Conventional sports bras are cumbersome to put on, lack adjustable tension features, and are clunky, making them uncomfortable and inconvenient during athletic activities.

Innovation Solution

A sports bra design featuring integrated cup, base, and strap portions that wrap around the torso, allowing for easy adjustment without reaching behind, with a sleek and supportive structure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If conventional pre-sized sports bras with non-adjustable elastic rib bands are used, then the structure is simple, but the ease of operation deteriorates because one must place the bra over the head and stretch the rib band around the shoulder

Engineering Contradiction:
Improveease of putting onVSAvoidstructure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The sports bra is divided into a front portion and a back portion that can be separated and repositioned. The back portion is configured to wrap around and overlap the front portion, allowing the bra to be put on by placing only the front portion over the head without stretching the entire rib band around the shoulders.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The back portion is designed to wrap around the torso in a wrapping motion rather than requiring the user to reach behind their back. This dimensional change in the fastening approach allows adjustment from the front, improving ease of operation.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Adaptability or versatility

If adjustable sports bras with hook-and-eye closure systems are used, then the adaptability improves, but the ease of operation deteriorates because the user needs to reach behind her back to readjust the tension

Engineering Contradiction:
Improveadjustment capabilityVSAvoidease of readjustment
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

Instead of having the adjustment mechanism at the back (conventional approach), the back portion wraps around and fastens at the front of the torso. This inversion allows the user to readjust the tension and fit by accessing the fastening mechanism at the front, eliminating the need to reach behind the back.

Inventive Principle:
Principle #13The other way round (Inversion)

Solution Approach 2:

The wrap-around design with front fastening allows the user to independently adjust the fit and tension of the sports bra at any time during activity without assistance or complex mechanisms, making the adjustment process simple and self-serviceable.

Inventive Principle:
Principle #25Self-service

3Adaptability or versatility

If adjustable sports bras with traditional fastening systems are used, then the adaptability improves, but the device complexity worsens creating a clunky design that encumbers the user

Engineering Contradiction:
Improveadjustment capabilityVSAvoiddesign complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The adjustment mechanism is integrated into the wrap-around structure itself, combining the support function with the adjustment function. The back portion serves both as a structural support element and as the adjustable component, eliminating the need for separate bulky fastening systems.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The back portion is designed as a flexible strip that can wrap around the torso and be fastened at the front. This flexible design maintains a sleek, low-profile appearance without adding bulk or clunkiness, while still providing the necessary adjustment capability.

Inventive Principle:
Principle #30Flexible shells and thin films

Data Source

PatentEP3788896B1Athletic bra
Publication Date: 2025.07.02 ADIDAS AG
  • EP3788896B1 patent drawingFigure 1
  • EP3788896B1 patent drawingFigure 2
  • EP3788896B1 patent drawingFigure 3

AI summary

A sports garment includes a cup portion that receives and conforms to a user's breasts, a base portion disposed along a bottom edge of the cup portion, a first strap portion disposed along a first side edge of the base portion, and a second strap portion disposed along a second side edge of the base portion. The first and second strap portions each include a shoulder strap that may be removably coupled to the cup portion to adjust the tension of the sports garment and a side strap that may be removably coupled to a front surface of the base portion to adjust the tension of the sports garment. The first and second side straps may flex between an open position and a wrapped position.