Under Armour Boys Charged Cotton 2.0 No Show Socks (8 Pack) 80% Cotton/17% Nylon/2% Polyester/1% Spandex Imported Strategic cushion protects high-impact areas of feet Embedded arch support helps reduce foot fatigue ArmourDry material wicks moisture, accelerates evaporation ArmourBlock Technology helps prevent growth of odor-causing bacteria in the sock