Don't worry the socks are soft. They aren't actually made out of marble.

These extremely soft crew socks with a sublimated print are made from 95% polyester and 5% spandex. Diamond stitch tube construction minimizes print distortion and wear so you can have stylish feet for years. Featuring a soft lining and cushioned bottoms for exceptional comfort.

Medium: US Men's 7-11 (or Women's 9-11)

Large: US Men's 12-13-11 (or Women's 11 )