The Lenex is made from technologically advance leathers, polyurethanes and moisture transferring polyesters to keep the foot in a healthy cool environment. Moisture transfer polyester lining. Removable Aetrex polyurethane orthotic absorbs shock heel to toe. Multi-density EVA midsole. Anti-slip rubber outsole. High-tech Carboplast foot bridge provides motion control and minimizes pronation. Three hook-and-loop straps. Aetrex unique PRS insole (Pressure Relief System) allows you to easily customize the comfort and fit of the shoe by trimming the insole at the areas of pressure.