After a long day traveling through the snow, the Postour is a 2-in-1 recovery tool whether you’re shoveling or sitting by the fire. Use it in full-boot mode outside base camp, where a Vibram® Arctic Grip outsole provides extra grip on icy surfaces, Coreloft™ insulation keeps you warm, and the GORE-TEX® overboot keeps snow off your feet with a high-cut collar that cinches shut like a chalk bag. Once you’re inside, slide out the removable slipper, complete with a grippy outsole and its own Coreloft™ insulation, so you can move freely and stay cozy as you plan your next mission. Size and fit tip: This product is available in whole sizes only. See the sizing chart to find your fit and size up if you're between sizes, or prefer a roomier fit.