Designed for mountaineering and alpine ascents, the Scarpa Men's Triolet Pro GTX Mountaineering Boot gives you the comfort and performance needed to claw across snow capped peaks and boulder strewn ridges. This boot features a 2. 8mm Suede Pro upper with a 360 degree rubber rand for rugged construction and long lasting use the 360 degree rubber rand also allows for compatibility with hybrid semi automatic crampons when you're conquering alpine glaciers and slippery, ice coated slopes. Allowing for calculated footwork, the boot's tri flex ankle won't inhibit technical moves when you're carefully crossing a narrow, knife like ridge with sheer exposure. Waterproof and breathable, the boot's Gore Tex membrane blocks snow and rain when you're slogging through summertime slush, crossing powder filled gullies, and even crossing the occasional creek. The boot's Pro Fiber insole and PUEVA midsole absorb shock when you're punishing your feet for hours on end. Providing sure footed grip, the boot's Vibram Mulaz sole features strategic climbing zones, allowing you to grip and claw across alpine environments without slipping.