Patons Kroy Socks Fx Yarn. The Wool And Nylon Combination Allows For Washability And Durability And The Wool Content Wicks Moisture Away From The Skin. Weight Category: 1, 75% Washable Wool/25% Nylon, 166Yd/152M. Suggested Knitting Needles: 3/3.25Mm, Crochet Hook: D3/3.25. Care: Machine Wash, Tumble Dry, Do Not Bleach, Do Not Iron, Do Not Dry Clean. Imported.