Great quality kids thermal socks. Fibre: 90% Acrylic, 8% Nylon, 2% Elastane. Ideal for cold winter days or even on the ski slopes. Knitted with high bulk Acrylic yarn, giving the socks extra thermal warmth and a high tog rating. Girls and boys options available. Girls option has colours deep cerise pink, purple and black. Boys option has colours black, charcoal and dark grey. Machine washable. Ref: UTK105