Kids' Muck Boots Big Kid Hale Rain Boots Comfort rated from subfreezing to 65°F (18°C), these children's boots are crafted from soft, flexible, heat-retaining CR Flex-Foam neoprene for reliable three season wear. The extended high-grade rubber exterior provides additional toughness and waterproofing, The durable ribbed outsole is self cleaning for stability on slick sidewalks, and it also wraps around the boot for extra grip. These neoprene boots have a back tab and wide opening that make them easy to pull on and off without fuss, while the inner PM Mesh lining keeps active feet cool and dry.