A modern and robust mountaineering boot in a classic design for rock and alpine climbing - that's the La Sportiva Karakorum Evo GTX! The high-cut shaft with 3 hooks will provide your ankle joints with both increased protection as well as more stability. The robust shaft is made of a 2.8mm-thick piece of leather with a GORE-TEX Performance Comfort membrane. As a result of this membrane, the boot is breathable, waterproof and responsible for the overall comfort by ensuring that moisture is wicked away efficiently. The additional, elastic padding at the shaft will protect your ankles and provide optimal comfort when walking. An 8mm high-density nylon insole with an Anti-Torsion plate make the shoe extremely stable and provide additional stability during multi-directional movements when climbing. The Vibram outsole with La Sportiva's Impact Brake System absorbs impact, provides breaking power on descents as well as great traction on technical terrain. The La Sportiva Karakorum EVO GTX mountaineering boot is crampon compatible and thus perfect for difficult hikes and alpine climbs where you require a crampon.