The Scarpa Phantom 6000 Men's Mountaineering Boot is especially designed for the alpine mountaineer tackling the big boys in the Alps, the Andes, Canadian Rockies, Alaskan Range and Himalaya. This boot boasts the same sturdy, hard-wearing materials as the Phantom 8000, but is custom made for lighter and faster ascents on the most demanding alpine routes. Unlike many high-altitude boots, the Phantom 6000 offers exceptional comfort by reducing pressure points while walking and climbing and offering superior ankle flexibility and support. The front spiral zipper provides a waterproof closure to the outer gaiter, which is made from elastic S-Tech on the pressure points on the instep and on the back area, run-resist Super-Fabric on the inside superbly tough Nylon and Kevlar on the exterior. The inner boot offers exceptional insulation – without adding too much weight – and features a quick-lacing system with Dyneema cord and a dynamic fit.