Scoot and scamper in the snow and rain in the Powderbug™ Plus II boot! ; Water- and wind-resistant nylon upper. Pull-on style has an adjustable elastic instep strap and a top drawstring with a barrel lock closure for a secure fit. Reflective logo at heel for increased visibility and safety. Removable 6mm washable insulation and recycled felt liner (rated -25°F/-32°C). One-piece, injection-molded TPR shell and outsole.