PATONS-Stretch Socks Yarn. This is a lightweight combination of wool, nylon and elastic with a breathable blend and a touch of elasticity for comfortable snap back, maintaining its shape and crisp stitch definition. The clean tweed shades assure there is something for everyone. Weight category: 1, 41%cotton/39% wool/13% nylon/7% elastic, 1.75oz/50g, 239yd/219m. Gauge: 28st x 36r = 4in/10cm on size 3/3.25mm knitting needles and D3/3.25 crochet hook. Care: hand wash, dry flat, do not bleach, do not iron, do not dry clean. Imported.