These Strachan II snow boots from Trespass are designed for children. They are insulated and fleece-lined for warmth and comfort. The boots feature an adjustable touch fastening strap for a secure and perfect fit. The outsole is made of waterproof rubber, and the upper is water-resistant textile. They also have a sherpa fleece collar and are thickly padded for comfort. It is recommended to go up one size for a comfortable fit. Upper: 60% Textile/Sherpa fleece, Lining: Fleece, Outsole: 40% Rubber.