Even when Montana's Big Sky is shining blue and the plow crews are getting well-deserved rest, winter's effects don't fade. We still need reliable get-to-work kicks. Winter-optimized rubber prevents slippage, the wool footbed lining and 100 gram Thinsulate keep the stomping and swearing to a minimum, and waterproof leather makes sure you're feet stay toasty all day. Fit Tip: Length runs true to size. Generous volume for thicker socks.