MediPEDS 8 Pair Diabetic Crew Socks with Non-Binding Top 63% Polyester, 35% Coolmax Polyester, 2% Lycra Spandex Made in US Machine Wash Coolmax Polyester moisture technology pulls moisture away from skin, keeping feet dry Non-binding top provides less constriction for total comfort Soft cushioning helps to protect feet and provides extra shock absorption in high impact areas of the foot Lycra Spandex fibers keeps the non-binding top comfortably in place and provides extra stretch and recovery