The Scarpa Crux hiking shoe keeps you comfortable on approach, moderate climbs and those long, rugged trails. Planet Friendly: 40 percent recycled synthetic leather and 29 percent recycled polyester mesh upper. 100 percent PC recycled lining; 70 percent recycled stroebel. Lace and webbing is 100 percent Ecosensor recycled polyester. Midsole has ECOPure EVA additive to promote degradation in landfill conditions. 25 percent recycled rubber outsole. Suede upper with recycled polyester airmesh. Smooth recycled polyester lining. Microporous EVA offers form-fitting comfort and support. Vibram vertical approach. Forefoot webbing with aramid fabric that secures the forefoot for climbing precision. Rubber toe rand. Super sticky Vibram Vertical Approach outsole. Measurements: Weight: 12 oz Product measurements were taken using size 39 (US Womens 7.5), width B - Medium. Please note that measurements may vary by size. Weight of footwear is based on a single item, not a pair.