J.B. Fields 50 Below Knee High Icelandic SocksJ. B. Field's 50 Below knee high Icelandic socks. The best merino wool winter sock you can find features a full cushion sole, anti microbial, wool that is knit into a deep terry pile to provide extra warmth that gives you maximum protection from artic weather. 1 pair per package. Machine Washable. Made in Canada Style #8516 Content: 85% Merino Wool 15% Nylon