The task was to create the lightest, most durable, best fitting, lowest volume weatherproof double boot ever made. The Acrux AR is the result. Designed for mountaineering, ice and mixed climbing, the Acrux AR combines the light weight and low volume of a single boot with the insulation, protection and quick drying advantages of a double boot. The comfort and support of Arcteryx Adaptive Fit technology, unique laminated construction, and a wide range of innovative components and materials are all leveraged to meet the dynamic needs of the alpine climber’s foot and the rigorous demands of extreme environments. Years in the making, the Acrux AR is an unprecedented achievement that meets the full spectrum of performance demands.
Climbers and professional mountain guides require use-specific performance across a range of alpine conditions and terrain. Their boot needs to provide support and security on mixed routes, ice climbs and glacial traverses. It needs to keep the foot warm, dry and comfortable, then dry quickly if moisture accumulates. It needs to withstand repeated use on rugged terrain. It needs to fit and provide a supportive platform. It needs to deliver all of this in a lightweight, low volume package for agility and freedom in extreme situations. Until now, some of these needs would have to be sacrificed to meet the others.
Arcteryx took the time to develop and meld new technologies so that the Acrux AR could satisfy the range of climbers’ needs without compromise. Arcteryx Adaptive Fit technology uses a removable bootie that employs stretch textiles and minimal seams to create an instant custom fit with no pressure. With protection extended beyond the cuff of the boot and the highest level of breathability in this category, the bootie’s GORE-TEX membrane optimises climate control and waterproof benefit. The perforated PE foam’s quick dry properties improve comfort, and a rubberised sole allows the bootie to be used as a camp shoe. The PE inner shell is preformed to compliment the bootie’s Adaptive Fit performance while providing insulation and a secure foothold. Laminated Watertight™ construction and an exceptionally breathable GORE-TEX gaiter deliver total protection from water with a high level of abrasion and puncture resistance to offset potential damage from crampons and rock. The specially developed Vibram AR outsole is designed for support and sure footedness. The tread and construction feature a semi-blocked toe, with anti-slip grooves, a medial climbing support zone, and heel created to provide braking on steep descents. The Vibram Mont rubber compound maintains its performance in sub-zero conditions.