Crescent Moon ExerSocks (3-pack) Non-Slip Grip Socks 90% Cotton 90% Cotton, 7% Nylon, 3% Spandex The socks come detailed with a black non-slip grip logo on the sole of the sock as well as an embroidered detail on the ankle. A revolutionary footwear concept for low-impact exercises that provides the anti-bacterial protection of a sock while providing the non-slip protection of a sneaker. ExerSocks provide the hygienic solution for workouts such as Barre, Yoga, and Pilates. Additionally, the ExerSocks are simply great while lounging around the house. A cushioned reinforced sole with our innovative StretchBand for comfort and a snug fit.