95% cotton / 5% other fibersspun from recycled denim jeansSPORT WEIGHT3.52 oz. / 100G219 yds / 200m21-24 sts = 4" in stockinetteUS 5-7 / 3.75-4.5mm12-17 sc = 4" in single crochetUS7-I9 / 4.5-5.5mmHand wash, lay flat to dry