HIGH PERFORMANCE ATF ANKLE BRACE - Left or right brace has concave instep for precise fit, vertical stretch
elastic over area of Achilles tendon; patented flexible steel springs reinforce both side of ankle. Allows complete plantar, dorsal flexion, unrestricted foot movement for jumping, speed, agility; springs act as tendons, help prevent inversion/eversion sprains. Patented inner ATF™ strap protects anterior talofibular ligament with firm support as brace conforms around ankle. Features Comfort Windows™ (single layer of fabric over ankle bones)