Kamik - Nation (Dark Brown) - Men's: 10.5 inches. Suede leather upper. Seal sealed waterproof construction specially treated leather and upper materials. From the inside to keep water from entering membranes, waterproof tapes or sealants are applied to all seamed areas. 200MB Thinsulate foam liner with felt insole has more surface area to trap warm air, insulating better than other high loft insulations, including down. Snowbob TR rubber outsole. Temperature rated: -40F/-40C.