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The Science Behind the Support

Posted on November 07 2016


Bra design has had little innovation over the past 100 years, and until now, no one has addressed the issue of breast weight from a physics and engineering perspective. Here’s a look at how the Trusst team set out to change all of that.


Trusst Beginnings

In the quest to create a better bra, Trusst co-founders Sophia Berman and Laura West started by identifying pain points often associated with traditional underwire bras. These pain points included back and shoulders, which often support the weight of the breasts; the side of the torso, where underwires end and often poke into the body; and the skin covered by a bra that experiences chafing and rashes. Once Berman and West knew what they were up against, they, along with a super smart team of women, used their backgrounds in industrial design to find a solution.


They quickly realized that breast weight is just another mass that needs to be supported. When viewed from this perspective, it became obvious that the same engineering principles used to support bridges and architectural structures could be applied to bra design. Inspiration for this design was not hard to find – Trusst is headquartered in Pittsburgh, PA, the city with the most bridges in the world. The team decided on the truss structure, which gave birth to not only the basis of their design, but also the company’s name.


So, Why a Truss?

Trusses are a series of triangular shaped structures that connect to help distribute weight across a broader area, as opposed to a single point. This idea was especially useful in designing the BAST (Breast Advanced Support Technology) system, because redistributing breast weight over a broader area was key in reducing the strain on the shoulders and back.


The Trusst team combined the aspects of trusses with those of a cantilever system to create the BAST system. A cantilever includes a structure that projects from a fixed point. In Trusst bras, the supporting structures are cantilevered from fixed points on the torso, directly under the bust.



Back to those pesky pain points

You may be wondering how all this engineering makes a more comfortable, supportive bra. With many traditional underwire bras, most of the breast weight often ends up begin supported through the shoulder straps, which is what causes the back pain and shoulder dents. The BAST system redistributes the breast weight to the core – the strongest part of the body, thus relieving the strain on the upper body.


Without a rigid underwire, Trusst also eliminates the discomfort caused by wires poking and digging into the skin. The BAST system inside each Trusst bra is made from a plastic material that is flexible enough to conform to the body but sturdy enough to support the weight of the breasts. In addition, the structure is completely encased in the foam cups so there is no fear of it unexpectedly popping out.


Because of the chafing and rashes experienced by so many women, Trusst teamed up with GARMATEX to line the cups with fabric as high-tech as the BAST system. GARMATEX Kottinu™ fabric is an engineered cotton-like fabric that features wicking and antimicrobial properties and lasts up to six times longer than cotton. Keeping breasts dry and comfortable is key to minimizing rashes and chafing.


After two years of research and development, Trusst is thrilled to have its first line of products out on the market. But this doesn’t mean the innovating is over - Trusst continues to work everyday to refine existing products based on customer feedback and develop new solutions and products for fuller busted women.


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