The Vertex Alpine GTX is a complete rethinking of the approach shoe. Balancing the fit and performance of a trail running shoe with the stability required for long days on technical terrain, it’s light, fast, waterproof and combines support and protection with a secure, comfortable ride. A full GORE-TEX liner seals out wet and snow, and the sticky Vibram XS Flash 2 outsole is designed for edging, on-trail performance, and grip in wet and dry conditions. A TPU shank and toe cap add protection, and a knit collar seals out debris. Updated with a PFCec-Free DWR (Durable Water Repellent) treatment. Arc'teryx Mens Vertex Alpine GTX Features: Suitable for Alpine Climbing,Mountain Running Breathable,Lightweight,Durable,Supportive construction,Waterproof,Abrasion resistant Knit collar seals out debris and integrates with the tongue to create a secure, comfortable sock-like fit Integrated carabiner attachment points for easy transport Integrated tongue pocket tucks away laces to prevent snags and untying EVA/Polyolefin blended midsole features higher abrasion component in the forefoot for scrambling Toe cap adds protection and abrasion resistance GORE-TEX provides waterproof and breathable performance TPU shank provides underfoot protection and stiffness for improved stability Cordura recycled PES Ergonomically patterned 4mm lugs,Offset (Stack height): 8mm (18mm : 10mm) Vibram XS Flash 2 outsole delivers outstanding grip and durable, sure-footed performance across a range of conditions Tread is specifically designed to provide grip while edging and offer on-trail traction with climbing performance Lining: Textile,Outsole: Rubber,Insole: Textile