Cotton 24/7 is a worsted weight yarn made from 100% mercerized cotton in vibrant colors. The mercerization process gives the yarn incredible color, gorgeous stitch definition, and a shine that will last through multiple wash cycles. Fiber content: 100% mercerized cotton; CYC #4 Medium. Care instructions: machine wash and dry. Each skein weighs 3.5 oz/100 g; Each skein is 186 yards/168m.