Aetrex Lynco L2405 Mozaic Men’s Customizable Metatarsal Orthotics – Aetrex Customizable Orthotics are designed to provide unsurpassed comfort and performance so you can feel great on your feet at all times. Features a softm CopperGuard top cover made from advanced copper fibers to help prevent bacteria, fungi and odor. These extraordinary orthotics offer an advanced Lynco arch support to comfortably balance your feet and provide proper body alignment.