Heat Holders are quite simply the warmest thermal socks and accessories you can buy! We started out in 2008 with a vision to create the ultimate thermal sock, warmer than anything else on the market. Since then, we've used our world-leading insulation knowledge to create ranges of thermal underwear, tights, hats, gloves, neck warmers and more. We also now offer a range of products to bring more warmth right into your home, including our toasty thermal blankets, which are available in a wide range of colours.