95.7% Brazilian mercerized virgin cotton / 4.3% metallic fiber5.3 oz / 150g547yds / 500m22sts x 28 rows = 4" in stockinetteUS 4 / 3.5mm24sc x 21 rows = 4" in single crochetUS B-C / 2.25-2.75mmmachine wash gentle cycle, lay flat to dry