The 6000 KARKA EVO RR high altitude mountaineering boots are suitable for expeditions up to 6000mt and will maintain an excellent thermal insulation and internal temperature thanks to the extractable inside shoe with Velcro fastening. The compact design, the super resistant shell made from Superfabric® and Microfiber, the technical fastenings and the posterior intersection that helps the roll of the foot are all characteristics that fulfil the mountaineer’s needs. Furthermore, these boots ensure a lightness, shock absorbency and a good grip thanks to high quality materials such as the carbon fibre Zamberlan® insole, a double intensity PU wedge and the new Vibram® Penia sole. These are boots for high altitudes and are compatible with automatic crampons.