With its unique design, this EVO has a speed lace closure for faster and easier application; a stirrup strap to capture the heel, restricting inversion/eversion ankle motion; & a dynamic cuff to protect against high ankle sprain. Its nylon boot has enhanced breathablility for long-term wear. Stabilizing straps form a figure-eight to protect and support the ankle. Fits in most types of shoes. Bilateral design fits left or right foot.