Jockey Men's Socks Staycool Cotton Ribbed Crew - 3 Pack Solids: 51% cotton/ 29% nylon/ 17% rayon/ 3% spandex. Heather: 27% polyester/ 29% nylon/ 24% cotton/ Made in US Machine Wash Style 900008 moisture-control technology helps keep your feet cool and dry 360-degree sock stretch for the perfect fit men's socks feature a smooth toe seam and advanced heel construction casual crew sock styling