Lowa - Civetta Extreme (Beige/Blue) - Men's: A tough, step-in crampon compatible low volume climbing boot, designed for demanding expeditions under the harshest conditions. Rubber randed PU upper consisting of 2 different protective compounds. Fitted lining with GORE-TEX Duratherm and Thinsulate. Vibram Alpine outsole is durable and stable, and suitable for crampons. Rated to be able to withstand temperatures up to -20C/-4F.