An essential to any wardrobe, the Bombas(R) Women's Tri-Block Ankle Socks provide comfort and support. The Honeycomb Arch Support helps keep your feet from feeling tired, while the cushioned footbed keeps your feet comfortable all day. Fit & Design Extra-Long Staple Cotton: a premium fiber that's soft, durable, and smooth against your skin. It shrinks minimally in the wash and will hold up wear after wear Cushioned Footbed: extreme comfort and extra support for your soles Honeycomb Arch Support System: cradles the arch of your foot, for a firm but comfortable hug around your midfoot Blister Tab: a soft, protective cushion at the heel that prevents chafing and blisters from shoe contact Y-Stitched Heel: creates a natural cup around your heel made to fit your feet Seamless toe closure Additional Details: One pair purchased = one pair donated