100 percent waterproof, comfort rated -22F/-30C, waterproof 7Mm 4-way stretch neoprene upper, adjustable weather collar,waterproof and lightweight rubber and lt, sup and gt, he and lt, sup and gt, injected shell anitbacterial removable footbed, self cleaning 3-season rubber and lt, sup and gt, he and lt, he and gt, outsole, built in the USA Kamik comes from a place of extremes. Where the harshest conditions intersect with some of the most beautiful sights you'll ever see. At Kamik, we make footwear that brings to life our northern origins. Singular. Strong. Simply dependable. We've been doing it for over 100 years. Day after day. 24/7. The result of all this effort: a complete line of outdoor footwear built to deliver superior comfort and reliable protection in the most extreme conditions. We know you wouldn't have it any other way.