Details Salewa Ortles Ascent Mid GTX Mountaineering Boot - Men's The Ortles Ascent Mid Gore-Tex® mountain boot is a solid solution for alpine mountaineers. Its thick suede leather upper, SALEWA® 3F System with steel cables and reinforced TPU rand make it exceptionally robust and durable, while the stiff carbon-loaded nylon fibreglass insole increases stability during activity. It has been engineered with a dual density expanded polyurethane midsole with dedicated stiff and cushioned zones, to ensure both comfort and precision, while the interchangeable layers of the Multi Fit Footbed Plus (MFF+) allow a customizable fit. The semi-crampon-compatible Vibram® Alpine Guide sole unit is engineered for traction, durability and reliability on difficult terrain at low temperatures. Its overall firmness is a key factor for use with crampons on snow and ice. The tread design features self-cleaning lugs for outstanding grip and a climbing toe profile for high edging performance. Moreover, the waterproof, breathable GORE-TEX® Insulated Comfort membrane has an extra insulated layer, which makes it the perfect option to keep your feet warm and dry in colder winter conditions in the mountains and there is an integrated stretch gaiter to prevent snow ingress. For additional downhill performance, the Ankle Protector System (APS) consists of a thermoformed material heel cuff that provides additional lateral ankle support, while the Flex Collar also further improves rear mobility. Weight: 1700 g (pair size 8) Lightweight, semi-automatic crampon compatible mountaineering boot APS (Ankle Protector System) Heel stabilizer Anti-debris stretch gaiter Reinforced rand Flex collar Gore-Tex membrane Vibram Alpine Guide outsole MFF+ Footbed Climbing Lacing 3F System 3D-Lacing Drop: 11 mm Insole: Crampon Compatible, Stiff Nylon Fibreglass carbon loaded Midsole: Dual Density expanded PU Upper: 2.0-2.2mm Suede Leather, 3F System with Steel Cables, Nylon (PA) elastic gaiter, Protective TPU rand Lining: GORE-TEX® Insulated Comfort (Duratherm XL) Outsole: Vibram® Alpine Hiking Specifications Ortles Ascent Mid GTX Mountaineering Boot - Men's