These socks have been engineered using the same Heat Threads that exist in the award-winning Zerofit Heatrub Ultimate baselayer which has been independently tested and proven to be five times warmer than a standard baselayer. These Heat Threads on the inside of the garment generate warmth instantly and offer an incredibly cosy and snug feeling of heating happiness!

Material: 69% Acrylic, 14% Nylon, 7% Polyester, 5% Wool, 2% Polyurethane

Optimal Temperature Range: -10° Celsius to 10° Celsius

• Body heat is sealed in thanks to the innovative Heat Threads designed and manufactured in Japan.

• Innovated and engineered to heat the user up instantly.

• Unique ‘Nano Pods’ on the sole offer enhanced grip in the Standard Length Socks.