La Sportiva Men's FC ECO 3.0 GTX Hiking Boot 100% Leather and mesh Rubber sole Ideal Terrain: backpacking and hiking for moderate to technical terrain Upper: Nubuck Leather/ 100% recycled Nylon Mesh/ Uretech; Lining: Gore-Tex&reg;/Dri-Lex&reg; Bristol 40% Recycled Nylon&reg; Midsole: Dual-density ECO Trailon/ 2mm LaSpEVA/ TPU shank; Sole: Vibram&reg; River with Impact Brake System&trade; Eco-Step Last: Trango 2 Weight: 18.59 oz / 527 g