The ARCTERYX Bora Mid GTX Hiking Boot combines the agility of an approach shoe with the stability and protection of a mountaineering boot. Based on a close study of the footG??s dynamics, the resulting boot combines an outer shell and an inner liner in a single streamlined structure. The long-wearing outer is a laminate of tough textiles; its one-piece construction eliminates seams, creates larger breathable surfaces and is snag- and abrasion-resistant. The waterproof/breathable GORE-TEX inner liner minimizes seams and eliminates the tongue to deliver instant comfort. Durable Vibram soles feature a climbing zone and a mountaineering heel tread for stability, traction, and braking.