CARON-Naturallycaron.Com Spa Yarn is 75-percent micro denier acrylic and 25-percent bamboo 3-ounce (85 grams) 251 yards 4=22 stitches on size 6 needles suggested crochet hook: G6 dyelotted and can be machine washed and dried. Spa Yarn is made with a unique multi-ply construction and micro denier fiber that provides a superior level of resilience and silky softness. Made in Turkey.