Aetrex Men's Dress/Casual Socks Machine wash warm with like colors. Use only non-chlorine bleach when needed. Tumble dry medium Luxuriously soft performance spun yarn plus added cushioning without making shoes feel tighter Flat seam construction for extra comfort and protection Incorporates Spandex to comfortably hug the foot and leg Eliminates 99.9% of the bacteria and fungi in the socks to control odor and rejuvenate the skin Machine wash warm with like colors. Use only non-chlorine bleach when needed. Tumble dry medium