The Women's Patagonia Yulex Regulator Lite Long Jane Wetsuit is formfitting and made from a stretchy blend of 85% Yulex natural rubber and 15% chlorine-free synthetic rubber by polymer content, with the natural rubber certified by Preferred by Nature. It features solution-dyed linings that offer flexibility and comfort, with an interior of 100% recycled nylon and an exterior of 83% recycled nylon and 17% spandex. All linings are laminated with water-based, solvent-free AquaA glue, providing a durable and environmentally conscious option for warm-water performance.