Heat Holders Thermal Socks Men's Slipper Rich Red 91% acrylic, 5% nylon, 3% poly, 1% elastane Imported Machine washable Keep feet warm, protected and supported around the home in a pair of Heat Holders slipper socks for men. With a massive tog rating of 2.34, these seriously chunky slipper socks Advanced Insulating Yarn - High performance insulation against cold with superior moisture wicking abilities. socks will help you stay safe around the home. Especially if your home has lots of wooden floors that could potentially be hazardous Finally, an intense brushing process provides the finishing touch to maximize warm air circulating around the sock.