Loading... Please wait...One of the highest quality sock yarns available today, Zitron's Trekking XXL is a staple among sock knitters. 75% Superwash Wool - 25% Nylon 459 yards per 100 gram ball 2-3 mm (approx. US 0-2) needles, approx. 7.5 sts per inch One 100gm ball is enough for a pair of socks or gloves for an average adult Free Sock and Glove Patterns are included with every purchase.