La Sportiva Men's Baruntse Hiking Shoe 70% Transparent PU Tech Anti-Abrasion Film with Hi A sturdy, durable double boot for high altitude mountaineering The thermo-formable inner boot sports the patented speed lacing system and couples with the highly insulated multi-layered PE outerboot for dependable warmth and a PU coating to keep moisture and cold outside and heat inside the boot. High abrasion resistant Cordura Ideal for use on 6-7000 meter peaks or in harsh winter conditions where you don't want to think about your feet. Ideal Terrain: 6000-7000 meter peaks or high cold mountaineering conditions