From Darn Tough, these socks feature: Performance fit Stylish and durable Seamless toe for an ultra-smooth, undetectable feel Moisture-wicking, thermo-regulating and anti-microbial Reinforced footbeds and Achilles cushion to improve comfort Ranger height One size fits most men's shoe sizes 9-13 Lightweight Merino wool/nylon/Lycra® spandex Machine wash/tumble dry Made in the USA.