These Strachan II snow boots are insulated and lined to ensure comfort and warmth. The adjustable touch fastening strap allows for the perfect fit. Boys snowboots. Insulated and warm fleece lined. Waterproof rubber shell outsole. Water resistant textile upper. Adjustable touch fastening strap. Sherpa fleece collar. Upper: 60% Textile/Sherpa fleece, Lining: Fleece, Outsole: 40% Rubber. Thick padded for a comfortable fit go one size up.