This warm 2-in-1 gaiter-boot with a removable inner boot is the perfect companion on mountain tours, ice climbing projects and expeditions. It integrates the improved patented Base Fit® 2.0 technology with doubled heel straps for perfect heel support and reduced blistering. Waterproofing and optimum moisture regulation are achieved using the innovative doubled chimney ventilation and the waterproof gaiter. Additional insulation is produced by the Thinsulate™ Ultra insulation incorporated in the inner boot. The proven Easy Entry system allows you to put the boots on quickly and easily, even when wearing thick gloves. The Boa® Closure System and the PowerStrap are also glove-compatible and ensure perfect grip in any alpine situation. The elastic gaiter with a waterproof YKK zipper provides protection from snow, water and cold. The patented double-insulated carbon insole provides maximum weight reduction, rigidity and maximum insulation. There are also attachment loops for pants-integrated and external gaiters.