Made of 88% breathable cool-cotton yarn! Perfect for people with diabetes and those with foot or leg swelling. Comfortably fits Medium to Wide shoe widths. Manufactured with a unique knit top that stays up without binding or leaving marks. The inverted toe seam offers a seam-free feel that enhances overall foot comfort. Anti-microbial fabric treatment helps protect against fungal growth and bacteria. MADE IN U.S.A.