The robust COLUMBIA Children snow boots POWDERBUG PLUS II have a practical removable warm fleece lining, which can be washed and dried quickly and easily. The lower shoe portion is made of solid rubber material and completely waterproof. They are a great companion for wet Tage.- stain-resistant, smooth cloth strongly profiled outsole for a slip-resistant tread reinforced heel and toe Velcro fastener on the shaft for optimal leveling shaft edge with drawstring and stoppers for additional protection against rain upper: other materials lining: textile insole: textile sole: other materials