The cotton content of the socks is as high as 92.5%.And added high elastic fiber to make you wear more comfortable. Long Stapled Cotton Natural quality cotton made socks are Soft, Breathable, Elastic, Quick-Drying, Machine Washable; fiber with strong stretch keep your feet refreshed. Professional High Density 200 needle Knit There are more stitches per inch than other socks , which means a more comfortable, durable, great fitting sock with no added bulk.