Wacoal address deformation and breathability challenges in bra cups with BASF's TPU
Last update on Jun 8, 2026
Persistent performance limitations in bra cup construction – including deformation after repeated washing, reduced breathability, and durability loss over time – have prompted a co-development initiative between BASF and Wacoal, a Japan-headquartered lingerie brand, using Elastollan® TPU-based non-woven fiber as the base material.
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Use independent technology for improved recyclability and reduced waste
According to the companies, this material innovation aligns with Wacoal’s broader commitment to advancing bra cup technology, as reflected in its independently developed “Melooop” technology, for creating three-dimensional shapes using the melt blown method with mono-material fiber, improving recyclability and reducing waste.
“At Wacoal, we design sports bras to support comfort in motion and confidence throughout the day. By incorporating Elastollan® TPU, we are able to enhance how the bra cup responds to movement, while maintaining a lightweight and adaptable fit,” said Keisuke Kawanishi, representative director, president and CEO, Wacoal.
By selecting Elastollan® TPU, Wacoal enhances key performance attributes in bra cup design, addressing common challenges associated with conventional materials such as deformation after repeated washing, limited breathability and reduced durability over time. The material’s lightweight flexibility, shape retention and mechanical strength also help improve comfort during movement and support longer product life.
Greater design flexibility
BASF claims that Elastollan® TPU also offers greater design flexibility, enabling thinner, lower-profile constructions without compromising structural integrity. This allows for more differentiated product designs that align with evolving consumer expectations.
“As sports activities increasingly influence everyday fashion, advanced material solutions such as Elastollan® TPU - which is engineered to deliver consistent mechanical performance under dynamic conditions - can elevate apparel design, comfort and performance of activewear,” said Rohit Roop Ghosh, vice president, Business Management TPU, Performance Materials Asia Pacific, BASF.
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Image credits: BASF