Boys plain black thermal socks with 1.20 tog. Pack of 3. Soft brushed inner to hold more warm air close to skin, keeping feet warmer for longer. Advanced insulating yarn for high performance insulation. Choice of 3 sizes. 85% Acrylic, 10% Polyester and 5% Elastane. Hand wash only. Do not tumble dry.Boys plain black thermal socks with 1.20 tog.