L: 21-23CM, Material: Nylon Package content: a pair of sports ankle protectors 1.STRONG SUPPORTAnkle support fitted with crisscross reinforcement straps to offer strong support & stabilization for the ankle tendons and joints. Designed to minimize the risk of injury especially during the strenuous activities. 2.SPEED UP PAIN RELIDF: Improve blood circulation, eases pain from heel spurs, achilles heel, plantar fasciitis, stress fracture, edema, splint, and other foot discomfort, swelling caused by long hour standing. 3.MUSCLE AND JOINTS RECOVERY: Improve circulation, support stiff and sore muscles and joints, stop suffering from osteoporosis, tendonitis, sprains, pain and discomfort, allowing you to retain your range of motion. 4.SOFT AND COMFORTABLE Made of breathable high-elastic and moisture wicking material which could against skin allergies and provides soothing warmth, aids in reducing injury recovery time. 5.EXTRACOMPRESSION TECHNOLOGY: The straps and ankle sleeves provide extra compression and support to help you prevent new injuries during any athletic fitness sport like hiking, basketball, running, soccer, training, tennis, volleyball, exercise gym workout, golf, kickboxing, dance, cycling.