Endorsed by BBC TV's Ski Sunday pundit and champion skier Graham Bell, Heat Holders' latest sock is ideal for skiers of all ages and abilities. To fit Ladies 4-8 uk. The extra long, thickly padded sock cushions the lower leg and foot against the tiring effects of cold extremities. Only Heat Holders are officially 2.34 tog rated for warmth provision. Because of their specially blended bulk yarn, extra long cushion loops and intensive brushing process, Heat Holders hold more warm air close to the skin, making them the ultimate in thermal socks for everyone - including avid skiers!