Recommended for: Distance trail running and ultra-marathons, speed hiking when ankle support and waterproof protection are needed. A lightweight waterproof speed hiker with the soul of a trail runner - it&';s the best of both worlds, with great traction and cushioned comfort underfoot, plus the ankle support that&';s needed on tricky terrain. The smooth rocker sole design allows for a natural rolling motion every step of the way, and the durable jacquard uppers provide great protection and foot hold. Product Specifications Upper Fabric, Synthetic Lining GORE-TEX Insole ATR Midsole Rocker-Shaped High Rebound DYNEVA Outsole LOWA Weight 375g / Single Shoe Heel Drop 6mm Stack Height Heel 32.5mm, Ball 26.5mm Country of Origin Vietnam Other No intentionally added PFAS Features & Benefits Upper Technology FLEXIBLE We build our boots with varying degrees of flexibility depending on intended use. VEGAN FRIENDLY No known animal products used in footwear construction. LIGHTER WEIGHT Optimized to reduce weight while working to maintain highest performance. Underfoot Technology LOWA RUBBER OUTSOLE Rubber outsole with proprietary tread designs specific for intended use.