Cabin fever has a new cure and it's called the Vasque Coldspark UltraDry Winter Boot. Whether your winter therapy is a hike to a frozen mountain lake or a trek to the mailbox, the new Coldspark provides the extra dose of confidence to tackle any winter outdoor adventure. Features 200g of 3M Thinsulate insulation; approximate rating is 0 degrees Fahrenheit Fleece collar lining for extra warmth Gaiter D-ring for your convenience Molded rubber heel kick Vasque's UltraDry waterproofing system 1.8mm waterproof leather, softshell Dual density EVA footbed Molded EVA midsole provides exceptional shock absorption Vasque Monolith with ColdHold compound outersole Average weight per pair: 1 lb. 15 oz.