The fact that these athletic crew socks by Smartwool are designed from a women-specific last isn't the only smart thing about them. Featuring Indestructawool technology, a patent-pending wool-based yarn for exceptional durability and all-day comfort, they're designed specifically for women with a slim fit and narrow heel. Light cushioned for athletic performance. Wool/nylon. Washable. Made in USA. S(4-6 1/2 , M(7-9 1/2 , L(10-12 1/2 .Orvis