Our Extreme Cold Weather/Mountaineering boot sock is designed for extreme cold climates or rugged terrain. This is our warmest sock, featuring full terry loop cushioning throughout for maximum warmth. Elastic support at arch. Reinforced heel and toe for increased durability.
USAF Safe to Fly Certified FR/NMND and NAVAIR SOA Approved.Height: Boot
From the toe to the top cuff, full cushion Tactical socks have terry loops running the length of the sock for a full profile of comfort and protection.
Machine wash in warm water on gentle cycle with socks inside-out. Do not bleach. Tumble dry on low or hang dry. Do not dry clean. You can learn more about how to wash merino wool socks here.
|Sock Size||Shoe Size|
|Men's/Unisex||Women's||Men's US||Women's US||Kids' US||EU||UK|
|XS||S||2.5 - 5||4.5 - 7||3 - 6||35 - 37.5||2.5 - 4.5|
|S||M||5.5 - 7.5||7.5 - 9.5||—||38 - 40.5||5 - 7|
|M||L||8 - 9.5||10 - 11.5||—||41 - 42.5||7.5 - 9|
|L||XL||10 - 12||12 - 14||—||43 - 45.5||9.5 - 11.5|
|XL||—||12.5 - 14.5||—||—||46 - 49.5||12 - 14|
|XXL||—||15 - 17||—||—||50 - 53||15 - 16|