La Sportiva Batura 2.0 GTX Boot - Men's Synthetic Gaiter: Elastic Cordura/ Laminated Gore-Tex stretch membrane/ Vibram rubber rand Upper: High tenacity Nylon/ Insulated anti-dragging felt/Insulated PE/ Insulating aluminum layer; Lining: Gore-Tex Insulated Comfort Footwear Insole: 3mm Honeycomb Tech insulating carbon; Midsole: 8-9mm TPU/ PU Inserts/ SBR Aircushion; Sole: Vibram with Impact Brake System&trade; Last: Nepal Weight: 31.64 oz / 879 g