Amazon.com: Arc。Made with zoned outsoles, the Arc\'teryx Vertex Speed Low Hiking Shoes grip rocky surfaces and provide traction on soft trails. Progressive hybrid shoes that combine the specific requirements of climbing with the efficiency of mountain-running shoes Abrasion-resistant PFAS-free Matryx® woven polyester uppers are durable, lightweight, breathable and flexible Low-profile, stretchy knit collars help seal out debris Lacing system provides a smooth pull and secure midfoot fit while preventing backslip Tongue pockets secure the laces, eliminate lace bounce and prevent snagging Flexible, laminated TPU reinforcement zones add protection and abrasion resistance Stretch materials extend from collars to U-throat for a precise socklike fit Shock-absorbing underfoot cushion keeps you feeling stable and lets you feel the ground beneath your feet Mapped dual-density midsole construction combines softer heel and midfoot cushioning for running comfort with firmer forefoot support for rocky terrain Offset: 7 mm; stack height: 23 mm heel and 16 mm forefoot Zonal lug patterns are specifically designed to provide forefoot grip while smearing with comfort and surefootedness on the trail Outsole and midsole zones integrate for optimal response and performance Forefoot TPU film provides underfoot protection and improved stability Vibram® Megagrip outsoles with LITEBASE technology deliver durable, surefooted performance across a range of conditions while shedding every gram possible