Pry yourself out of those ski boots and pull on these extremely warm, durable and water-resistant booties with durable high-traction soles. Durable, insulated slip-on booties. Lightweight ThermoBall powered by PrimaLoft insulation retains warmth when wet. Durable, water-resistant, 100% recycled P.E.T. ripstop upper. Easy on/off upper design. 40% recycled-rubber sole for supreme traction. Approx Weight ( 1/2 Pair): 7.5 Oz (214 G). Insulation: PrimaLoft ThermoBall Synthetic. Machine wash. Imported. Products on Sale are Discontinued Styles or Colors..