Trail tested on Vermont's own Long Trail, Darn Tough Merino wool hiking socks will provide you with an unrivaled level of cushioning performance whether you're sporting approach shoes or hiking boots. 65% merino wool, 31% nylon, 4% Lycra spandex. Merino wool naturally regulates temperature, keeping you cool in the summer and warm in the winter. It's fast drying and naturally antimicrobial. Fine gauge knitting2more stitches per inch ensure a secure foot hugging fit with less bulk and more comfort. Abrasion resistant yarn2four ply nylon reinforces heel, toe and foot bottom making Darn Tough socks incredibly strong. Zero friction deep heel pocket enhances fit, eliminating friction, blisters, and hot spots. Reinforced heel and toe. Ring toe construction for a comfortable invisible seam. High density cushioning on foot bottom. Midfoot support2elastic at arch keeps sock securely in place plus provides extra lift and endurance. High density terry loop padding in the foot and shin areas won't flatten out under pressure. Darn Tough socks are made in Vermont.