DuPont Industrial Biosciences (DuPont) announced collaboration with Unifi, Inc. to create high-performance, renewably sourced garment insulation, offering leading apparel brands a new sustainable choice for cold-weather products. This partnership brings together two leaders in the materials space with unique product offerings, combining DuPont Sorona polymer and Unifi Repreve to produce cold-weather apparel insulation that is uniquely soft and extremely durable, with excellent shape retention.