NIKE Women's Dry Cushion Low Socks (3 Pairs), Black/Anthracite/White, Medium 75% Polyester/21% Cotton/3% Nylon/1% Spandex Made in USA or Imported Dri-FIT technology helps keep feet dry and comfortable Cushioning at key zones help absorb impact; left/right specific for a natural feel Mesh top panel enhances breathability Low silhouette has double tabs and arch support for a secure fit Small (4-6), Medium (6-10) & Large (10-13)