SweetGeorgia Bulletproof Sock- A smooth, soft, yet strong yarn ideally designed for sock knitting! 437 yards (400 m) of 4-ply light fingering weight yarn for socks available in skeins of 3.5 oz (100 g). This blend contains 50% superwash merino wool, 15% silk, 15% mohair, 20% nylon for smooth and hard-wearing hand-knits. Suggested gauge for sock knitting: US 0-1 (2-2.25mm) at 9 sts/1″. Hand wash gently, lay flat to dry.