La Sportiva Men's Omega GTX Hiking Boot 100% Ingrasatto Leather/Nubuck leather cuff/Cordura w/ Lycra gussett Imported Rubber sole Upper: Ingrasatto Leather/ Nubuck leather cuff/ Cordura&reg; w/Lycra gussett; Lining: Gore-Tex&reg; Insole: 7mm Ergoflex Midsole: Co-Molded Symbios PU/EVA/ TPU torsion plate Sole: Vibram&reg; Sasslong with Impact Brake System&trade; Weight: 23.42 oz / 664 g