Sock a luxurious blend of 80% merino/10% cashmere/10% nylon, springy with great stitch definition. Recommended needle size US 1-3 for socks, knits up at 7 stitches per inch on size 3 needles. Also beautiful on US 4-5 needles for garments and shawls. 4oz skeins/400 yds. Superwash but I recommend hand washing for all hand knits.