Nike Pro Combat Hyperstrong Ankle Sleeve The Nike Pro Combat Ankle Sleeve provides lightweight joint support designed to release excess heat while promoting healing and support to injured ankles. Excess heat is released through strategically placed mesh for added breathability. Lightweight AriapreneŽ material keeps muscles warm without sacrificing joint support. Contoured design adds freedom of movement for superior performance. A silicone grip and elastic binding offer a secure fit and optimal comfort. 36% nylon/18% polyester/18% TPE/17% silicone/11% spandex.