La Sportiva Olympus Mons Evo Expedition boots (47, black/orange) - La Sportiva's technical boot for Himalayan mountaineering and the extreme demands of cold environments. The Olympus Mons Evo contains the most advanced features in the field of technology applied to footwear production. The new model has very contained external volume, for being an insulated double boot for high elevation, and with its weight 15% less than the previous version it becomes the lightest boot of its category. It features a movable collar that allows easy fitting and precision closure. It has a new highly insulating sole, with anti-abrasion rubber reinforcements, that is suitable for step-in crampons.