Skins Unisex Adult Bio T&R Long Tights Nylon 76% / Spandex 24% Imported 76% Nylon, 24% Spandex Recover Quicker, Perform Better. Passive compression delivers more oxygen-rich blood to your resting muscles, significantly reducing delayed onset muscle soreness and accelerating recovery time. Goodbye Jetlag. Better circulation significantly reduces swelling and dehydration (2 primary causes of jetlag) on long haul flights. Cold machine wash, gentle cycle, with like colors. Do not bleach, iron, or tumble dry.