BOREAL Arwa BiFlex mountaineering boots

Specifications: - WEIGHT: 1980 gr - UPPERS: Waterproof and reinforced one piece Dynatec with Lorica - Bi-Flex system for superior flexion and comfort - Three-piece adjustable Velcro Tongue System (VTS) - Neoprene closure for thermal insulation - HFS padded heel system for a perfect fit - Rubber rand for protection. - LINING: Boreal Dry-Line for absolute waterproofness and superior breathability - Full internal single layer Thinsulate lining for thermal protection. - MIDSOLE: Boreal PBG-680 with lateral reinforcements for torsion control - Unique triple layer Thinsulate thermal protection. - SOLE: Vibram Teton - Rubber sole with dual density, shock absorbing EVA and PU - TPU heel and toe piece for automatic crampons. - USAGE: Very cold conditions - Alpine climbing - Technical ice and mixed climbing. Technology: - DRY-LINE: The Dry-Line system offers much more than just a waterproof membrane. Besides the waterproof properties of the Dry-Line it is one of the most breathable systems on the market, transporting moisture both horizontally and vertically away from the foot. - TLS: A thermal insulation system with a triple layer of Thinsulate all around the foot combined with different layers consisting of neoprene, completely waterproof 2.8 mm leather, highly abrasion Cordura and 2.5 mm of EVA. - XTP FOOTBED: Specially insulated insole to reduce heat loss. - HFS: Padded foam heel fit system developed by Boreal to hold the heel in place and avoid movement. - VTS: Three-piece tongue system where the user can adjust the height depending on the morphology of the leg. - Bi Flex System - Vibram Teton