Specifically designed to help control the position of the feet. They are shaped to help stabilize and balance the foot and to provide the extra comfort and support needed for optimum performance. This unique cushioning system helps absorb shock, reduce friction and improve overall foot comfort. Features 4-way stretch fabric to help reducer friction and heat build-up that causes blisters and calluses. The closed-cell nitrogen-injected Spenco material that absorbs shock and impact to provide maximum comfort. Also features a moldable arch insert to help support and control the foot.