The ASO or "Ankle Stabilizing Orthosis" Ankle Brace is a best selling ankle support for ball sports such as Netball, Basketball and Football. The ASO Ankle Brace stabilizes and supports the ankle with plastic stays to prevent rolling or twisting. Unique stabilizing straps replicate the stirrup effect of an athletic taping application, positioning the ankle at 90 degrees. Constructed from materials to ensure maximum comfort. Mesh ankle liner contains lycra allowing the brace to stretch with motion. Reinforced with nylon webbing pockets, stays will remain in place for optimal support. Superior fit into a sport shoe. Available in black and white.Features: Durable and comfortable. Superior ankle stability. Patented stabilising straps "lock the heel". Helps treat injured ankles and helps prevent injury. Unique stabilising straps. Plastic stays inserts For sizing: Can be worn on left or right foot. Measure ankle circumference from the base of the heel to the dorsal ankle crease. Show size can also be used for a guide.