La Sportiva - Trango S EVO GTX (Red) - Mens: This was Backpackers Editors Choice for 2004. This lightweight alpine boot just got better with the addition of Gortex(R) lining for waterproof breathable performance. The innovative 3D Flex ankle-hinge system provides plenty of support when straight on front pointing yet remains flexible from side to side when flat footed in French style. This all synthetic boot is the finest boot for alpine hiking, via ferrate, big walls or classic alpine climbing. New matic style crampon compatibility. Water repellent Cordura(R) upper with idro treatment + Flex Tec 2. Water repellent Lorica(R) with antiacqua external coating. Dri-Lex lining. Board lasted construction. 7mm Trailflex insole. Dual Density Micropore midsole with reinforcement for crampons in the back. Vibram(R) Dru outsole. Boot weighs 2 lbs. 10 oz.