Full Length Size * Men 12-13 * Clinically Designed Doctor Recommended * At The Heart Of Every Spenco Rx Product Is A Unique Spencore Layer Spencos Cushion Layer That Absorbs Shock Reduces Friction And Improves Overall Foot Comfort * Soft Durable Arch Support * Soothes Tired Feet And Sore Arches * Improves Body Alignment * Absorbs Shock And Reduces Friction That Can Cause Blisters * Unconditionally Guaranteed For One Full Year