Features Our award winning Sinner just got even better, now with full length flexy zipper for easy of taking off and putting on Still the ultimate knee pads for riding in comfort all day long IPX protection is soft and comfortable while riding, but hardens on impact Slim enough to be worn under pants Fast- wicking, breathable, and quick-drying material Vellcro® straps provide a slip on resistant grip, helping pads stay in place during crashes Perforated neoprene on inside of legs for ventilation and comfort The soft inne rlining does not rub during the trip and is comfortable Certified to EN 1621-1