The Solids are straight-forward but never basic. We believe that should be the case for all elevated essentials. Knit from American-grown ring-spun cotton, built with enough cushion to make a difference and still, they avoid being bulky. Also Available: The Solids Quarter Crew Size Guide: Regular (REG): Men's US Size 7 - 12 / Women's US Size 6 - 10 Extra-Large (XL): Men's US Size 12 - 15