Fit & Design Tight fit compression socks Airflow venting strategically helps keep you cool and comfortable Strategic zone cushioning provides cushion where you need it Seamless Toe Stay-up technology helps prevent the socks from falling as you walk Fabricated from specially spun yarn for increased durability Technology 20-30 Mmhg compression level Hex tec socks come with performance breathability and moisture-wicking for a drier feel during intense activity Honeycomb arch support cradles your foot for a more comfortable step Additional Details One Purchased = One Donated: For each pair of socks purchased, Bombas donates a pair to those in need Machine wash cold on gentle cycle, only non-chlorine bleach when needed, tumble dry low, do not iron, do not dry clean