Cole Haan Men's 3 Pack Even Stripe Crew Socks, Khaki, One Size 75% Polyester/23% Cotton/2% Spandex Imported Machine Wash This sock can also be worn as a casual sock with jeans or khaki pants Polyester has excellent wash ability. Cotton is soft and heat resistant. Cotton absorbs moisture from the foot and is breathable. Cotton also provides shock absorbency.