Advanced technical alpine approach footwear utilizing interchangeable Adaptive Fit liners and unique materials and construction. Designed to explore a range of terrain in varied conditions. Includes 1 pair of GORE TEXAR LOW LINERS. Combining all of the Arc'teryx footwear fit and performance footwear technology with removable, interchangeable Adaptive Fit liners geared for variable weather and terrain, the AcruxA2 FL is the most versatile Arc'teryx technical approach shoe. Using stretch textiles that conform to any foot shape and eliminate friction, the separately constructed liners deliver superior comfort and fabric performance. The removable waterproof breathable stretch GORE TEXAR liner provides quick dry, air permeable performance in warm, dry conditions. A more insulated mid cut liner, which suits winter conditions, snow or cold temperatures, is available separately. The VibramAR Arc'teryx Approach Outsole uses a durable MegagripTM compound and unique tread design for sure footedness on rock, heel braking ability on downslopes, and ease of stride on trail and varied terrain.