111939GSS44 Features: Get the traction you need with the Vibram Lavaredo (Sticky Supertrek Rubber) soles and double Vibram rands Strap on your crampons when needed for a better grip on ice and snow Stay dry in water-repellent Cordura, water-repellent Lorica with an Antiacqua external coating, and a GORE-TEX Duratherm lining for warmth and absolute waterproofing and breathability Reduce strain on your ankles with the 3D FlexTM ankle that optimizes maneuverability and stay warm in the insulating Ibi-Thermo insole that won’t conduct cold from the ground Protect your toes with the double rubber reinforcement at the toe box Specifications: Weight per pair: 3 lb 8 oz Uppers: Cordura to Flex Tec 2 Midsole: 6-7 mm HP3 Outsole: Vibram Lavaredo rubber