The socks that delivery, the Postal Uniform Mini Crew Single Pair. Sold as a one-pair pack. Low-cut length sits at ankle. Self-adjusting welt cuff. Thinly ribbed cuff. Elastic arch support. Deep heel pocket. Y-stitch heel. Extended heel padding protects the Achilles tendon. Extra padding at toes. Low profile toe seam for irritation-free wear. Featherweight and moisture-wicking properties allow for a comfortable wear. 76% Thor•Lon® acrylic, 15% nylon, 7% polyester, 2% spandex. Machine wash cold, tumble dry low. Made in the USA.