CARE INSTRUCTIONS: Machine Wash warm with like colors.  To whiten socks, use bleach alternatives.  Tumble dry on low heat.  Do not iron. Do not use fabric softeners; they leave a residual coating on fibers and fabrics, preventing them from performing as designed. To remove fabric softeners, simply launder with detergent and rinse. Do not use Chlorine Bleach. Do not use skin lubricants. 73% Drymax/Olefin, 11% Polyester, 5% Elastane, 11% Nylon Made In USA