Size: Men's 7-12
Also fits: Women's 8-13
Men requiring size 4-8 can look at Women's styles.

WARMEST THERMAL SOCK - Heat Holders® Men's Rook ORIGINAL™ Block Twist Crew Socks are the warmest thermal socks Heat Holders offer and are 7X warmer than a basic cotton sock. They are made of advanced thermal yarn with a tog rating of 2.34 but are super soft and comfortable to wear. Our non-binding socks are available in a variety of colors and styles. The Men’s 7-12 size also fit Women’s 8-13 sizes. 

SUPER SOFT - Our thick winter socks keep you warm and comfortable. Each sock is intensively brushed so they are sensationally soft and trap warm air close to the skin keeping your feet warmer for longer! Whether you are hanging out at home or the cabin, headed to work, or off on an adventure, Heat Holders® will keep your feet warm and comfortable. 

DIABETIC FRIENDLY - Heat Holders® are made with a patented loop technology that allows for enhanced warmth and are made with a non-binding top for a comfortable fit. Heat Holders® are diabetic-friendly and provide relief for those with cold feet caused by circulation issues. They keep warm air close to your skin & offer support without feeling too tight or uncomfortable. 

VERSATILE COLD GEAR - Our tall thermal socks are made of 1% acrylic, 5% nylon, 3% polyester, and 1% elastane for the ultimate combination of warmth, softness, and comfort. Our ORIGINAL™ socks are the warmest level of socks and are must-have cold-weather gear. Our cozy yet supportive socks are perfect for at home, work, or during outdoor activities and will keep you warmer than regular cotton & are softer than wool. Never sacrifice comfort or warmth, with Heat Holders® you can have both!

HEAT HOLDER - Heat Holders® make socks in three different levels of warmth to fit whatever your day may bring! The ULTRA LITE™ thermal socks are designed to provide thermal protection and comfort in a lightweight, slim profile and are great when wearing tighter-fitting shoes. The LITE™ has a medium-thick profile while providing thermal protection & comfort when wearing casual shoes or boots. Choose Heat Holders® for your cold weather needs, socks, hats, gloves, thermal underwear, & apparel!

• Fibre composition: 91% acrylic, 5% nylon, 3% polyester, 1% elastane
• Advanced thermal yarn
• Sensationally soft
• Non-binding, and diabetic friendly
• More than 7X warmer than basic cotton socks
• Machine washable at 40° Celsius (104° Fahrenheit)
• Single pair pack
• Imported