Darn Tough was opened in Northfield, Vermont over thirty years ago. What sets them apart, you wonder? Darn Tough socks are all knitted with Merino wool and Coolmax ® with a fine gauge needle. With high density knitting techniques, Darn Tough socks aren’t just stylish and modern. Skiers and mountain climbers are well-aware that Darn Tough socks are durable and reliable. No matter your direction on the mountain, your feet will be kept warm!