Description of La Sportiva Trango S EVO GTX Boot - Women's Revolutionary fusion of ultralight technology and mountain boot protection designed for moving fast and light over technical terrain in the mountains. Backpacker Magazine's Editors' Choice in 2004, the addition of Gore-Tex® represents the EVOlution of this proven design. This is a new generation of mountaineering footwear that changes the old paradigm and redefines what it means to be a mountaineering boot. Features: Innovative 3D Flex™ ankle Gore-Tex® lining for waterproof breathable performance 7mm Trailflex insole with a Dual-density Micropore midsole Vibram® Mulaz sole with Climbing Zone platform