Solmate Lovingly Mismatched Adult Cotton Socks, Indian Summer, Medium 80% cotton Multi-patterned and colorful mismatched socks for adults, crew length Uniquely crafted from remnants of other cotton garments, mainly t-shirts.Fabric scraps are ground up and re-spun into "new" yarn which are then knit into colorful socks. Yarns are 80% cotton, 19% nylon and 1% lycra for more durability and stretch Sizing Info (by shoe size)- [SMALL: Women's 6 - 8, Men's 5 - 7], [MEDIUM: Women's 8 - 10, Men's 7 - 9], [LARGE: Women's 10 - 12, Men's 9 - 11]. Some colors come in [X-LARGE: Women's 12+, Men's 11-14] Made in USA