This is mid-calf length, extremely warm sock. The merino wool terry loop piles cover the full inside of the sock, offering exceptional thermal protection and comfortable fit.
Outer shell: 96% Nylon, 3% Elastane, 1% Cuff Elastics
Interlining: Porelle® membrane
Inner sock: 38% Merino wool, 38% Anti-pilling acrylic, 24% Nylon