Keep muscles warm and stay supported with this Ankle Sleeve from Nike Pro. In a black colourway, this slip-on sleeves is made from stretchy fabric, which is light and breathable. It offers a secure, compressive fit and has a silicone grip. Finished with Swoosh branding.. Material: 35% Nylon/19% Polyester/18% TPE/17% Silicone/11% Spandex