NWT * Technical Features: Breathable, Durable, Lightweight, Waterproof * Footwear Width: Standard * Footwear Construction - GORE-TEX provides waterproof and breathable performance - Injected EVA Midsole delivers longwearing cushion and comfort - Molded rubber toe cap provides protection - SuperFabric® micro-plate technology delivers outstanding abrasion resistance for remarkably little weight - TPU chassis at the midfoot and forefoot provides stability and torsional rigidity *Footwear Liner Construction: 4mm thickness OrthoLite™ 3D molded insert * Footwear Outsole Construction: Vibram® MegaGrip™ rubber compound is durable and grippy * Sizing: - Boot length: 11.25" - Insole length: 10.5"(incl. the heel rise) - I'm a 8.5 in regular shoes / EU 40 1/2 in hiking boots; these fit me only well if I wear mountaineering socks. The EU 40 2/3 seems to be the correct size.