Columbia Women's Ravenous Stability Omni-Tech Trail Running Shoe 100% Mesh Rubber sole Firmer EVA foam at the midfoot for outstanding pronation control Gusseted tongue keeps out unwanted debris 3D Techlite heel system provides conforming fit and stabilizes the foot over the midsole for protection on technical terrain Dual-density Techlite molded midsole Soft lateral foot strike zone to provide greater cushioning in the heel