Socks n Socks Men's Crew Socks - Dream Blue Diamond are 80% combed cotton, 18% nylon and 2% spandex. They fit Men's shoe sizes US 7-12. They are made in Turkey with super soft Turkish cotton for a comfy and snug fit. They keep your feet warm, dry and comfortable all day thanks to the nonslip weave, reinforced toe and sweat-resistant, breathable Turkish cotton fabric. Machine wash inside out and tumble dry on low heat.