The Crow GTX is a versatile mountaineering boot with an abrasion-resistant fabric upper and waterproof GORE-TEX protection.Designed for mixed summer use on general alpine terrain and alpine trekking, the Crow GTX has a crampon-compatible Vibram New Mulaz sole for Combi crampons that offers grip on rock and traction in mixed mountain terrain and snow. The GORE-TEX Performance Comfort lining delivers optimized climate comfort should the weather close in on you and theres a full rubber rand for protection against rock and scree.The Crow GTX integrates SALEWA technologies to offer the Alpine Fit 100% blister free guarantee: 3F System for firm ankle and heel support, Climbing system to ensure that it fits perfectly around your foot and Flex Collar for comfort during descents.