Asolo TPS 520 GV Boot - Women's Leather Exclusive midsole uses low density polyurethane surrounded by high density polyurethane for shock absorbtion and durability Co-partnered Vibram outsole with Aso brake, designed for confident downhill traction Asoflex plate provides twisting resistance for ankle support Gore-Tex lined seam sealed upper Avg. Wt. 3lbs, 5oz.