Bioworks Corporation has announced that its plant-based synthetic fibre, PlaX, is now being used in outerwear collections from The North Face and Neutralworks, both part of the Goldwin portfolio in Japan. PlaX has been developed as a practical alternative to traditional synthetic performance fibers and has undergone three years of testing, refinement and approval for use in high-quality clothing.

PlaX is produced using Bioworks’ proprietary technology that modifies polylactic acid made from renewable resources such as sugarcane. It has been designed to meet the strict functional and visual requirements of premium outdoor and wellness brands.

Compared to regular polyester, PlaX cuts CO₂ emissions by about 70% during filament production and 50% during staple fiber production. It also uses around 90% less water from raw materials to yarn production when compared with cotton. Additionally, PlaX biodegrades into water and CO₂ under industrial composting conditions and can work with emerging chemical recycling technologies.

Bioworks and Goldwin began working together in 2022, focusing on addressing common challenges of bio-based fibres, including dyeability, durability and long-term wear. Through continuous prototyping and close work with textile and dyeing partners, the teams improved yarn processing and fabric design so the fibre could fit smoothly into mass production without affecting quality or brand standards.