85% Cotton/13% Nylon/2% Spandex QUARTER Sock. When You Want A Shorter, Sportier Sock The New Design Of This Sock Is Designed Specifically For The Big Guy And Those With Special Medical Conditions Such As Circulatory Or Diabetic Needs. Features: Extra-wide foot and leg Deep Footbed Non-Binding Top Comfortable Cotton Blend Comes Up The Ankle Approximately 3" Sizes: L - Fits Shoe Size 8-11 Up To 6E XL - Shoe Size 11-16 Up To 6E 3XL- Shoe Size 16-21 Up To 6E