The -40 Below Icelandic Trail socksare one of the warmest socks the J.B. Fields make and contain an astonishing 85% wool. The were designed to keep your feed warm and dry even in the most extreme conditions.
It is recommended that a sock liner be worn to help wick away moisture to help your feet keep smelling fresher, warmer and blister free.
Fits Men’s size 4 – 8, Women’s 5 – 9
