Heat Holders Childrens Boys Girls Long Striped Thermal Socks 1.5-4.5 us - 7-10 years 91% Acrylic, 5% nylon, 3% polyester, 1% elastane Machine washable Childrens Unisex 2.34 tog Heat Holders Thermal Socks 1.5-4.5 (7-10 Years) Brushed Inside to trap more heat inside your feet & legs, to keep you extra warm 7 x Warmer than a basic cotton sock Made from speciality Thermal yarns for extra comfort and warmth spongey comfort soles and gentle grip tops - Knee high length