J.B. Field's - Icelandic "30 Below XLR" Merino Wool Thermal Sock Color:Black heat-treated stainless steel plates held

heat-treated stainless steel plates held together by our high tensile Cash Wrap Strap

Teflon coated polyester Windguard canopy

Keep your gear

Includes easily replaceable batteries - 2 x 2016 3V Lithium

Its compact 16" long and 8" wide size makes it perfectly portable and a good fit in all vehicles

J.B. Field's - Icelandic "30 Below XLR" Merino Wool Thermal Sock Color:Black heat-treated stainless steel plates heldThe J. B. Field's "30 Below XLR" sock is ideal for those who spend a lot of time outside in cold weather and is perfect for winter sports. With a full, heavyweight cushion and soft merino wool, they are sure to keep your feet warm and comfortable in the most extreme conditions. The only differences between these socks and the "30 Below Classic" are the double cuff to help socks stay up better and both ankle and arch support, which prevents slippage