Next-generation Sportswear with Polylactic Acid, Auxetic Knitting Structure and Ergonomic Design

Principal Investigator:
Prof. Erin CHO, Dean and Limin Professor in Integrated Strategies and Leadership in Fashion, School of Fashion and Textiles; Advisor, Leopitorca Global Limited (a PolyU startup)

This ergonomic sportswear solution uses polylactic acid (PLA), a natural eco-substitute for polyester, for its fabrication, combined with auxetic knitting structure (AKS) textile engineering. This combination delivers improved shaping, support and fit without using Lycra or polyurethane, while also enhancing the sportswear’s antibacterial properties, UV protection, flame retardancy, and temperature and moisture management. 

Additionally, the ergonomic construction maximises athletic performance by aligning with muscle groups, allowing full-range motion and effective temperature regulation. Being 100% sustainable, using PLA can improve environmental sustainability in textile production waste management and sportswear functionality. Meanwhile, the auxetic knitting structure ensures superior shaping, elasticity and support. The ergonomic design also provides a better-contoured fit, improving protection against injury and offering better body support. 

This solution not only enhances performance for athletes and physically fit individuals who exercise rigorously, but also improves the exercise experiences of individuals in less-than-perfect physical condition by providing better safety, functionality, support and fit.