The fleece-lined Arctic Sport II is our warmest children’s boot, built to handle snow, rain, mud and super-cold weather. The ribbed outsole makes cleaning a breeze, and the comfortable stretch-fit topline keeps all the toasty warmth in and all the rain, cold wind and snow out, so your children’s feet stay warm, comfy and bone dry. This boot is 100% waterproof with a thick, 5mm internal layer of CR Flex-foam.