Muck Boots Rugged II boots for kids will help protect your kids from severe cold. With a 5mm CR Flex-Foam insulation it is backed with a fleece lining for extra warmth and insulation. It provides Muck Boots classic comfort. These boots are easy on and off for kids and come in fun and bright colors. Made of rubber these boots also have a rubber outsole that provides for added traction.During the winter months or mixed weather conditions these boots help keep your little ones feet dry. The bright colors add style to these kid's boots. Staying rugged while being warm these boots give kids the best of both worlds. Keeping your child safe is of primary importance. These boots are made of Muck Boots quality materials. The original muck boot is actually fairly new, only appearing in 1999, when The Muck Boot Company set out to create a high-performing boot that was incredibly comfortable and also attractive. Known for boots that are waterproof, scuff resistant and can hold up to any weather, the Muck Boot is a rite of passage for boot lovers who want something unique, attractive and durable.