Constructed to withstand the rigors of hiking and trail running, the Darn Tough Vermont 14 Cushion HikeTrek Sock has legendary performance fit with solid cushioning along the bottom of the foot. No slipping, no bunching, no blisters. Fine gauge merino wool makes this a fast drying and breathable all weather sock that stays cool in the summer and warm in the winter. Naturally antimicrobial so it repels bacteria and odor. Made in Vermont. Guaranteed for life. High Density Knitting. More knit stitches per inch for durability and cushioning without bulk. Performance Fit. Form fitting toe boxes, sculpted heel pockets and knit in elastic support at the arch, for one of the best fitting performance socks available. Merino Wool. Custom count, shrink treated merino wool enhances comfort and durability. Cushion. Dense terry loops on the bottom of the foot produce cushioning and warmth without bulk. Ribbed Ankle Support. No slipping. No bunching. Helps prevent blisters. Elastic Arch Support. Knit into the arch of all of Darn Tough socks to provide added endurance. Ring Toe Construction. Terry loops surrounding the toe create a comfortable invisible seam. 65% merino wool, 31% nylon, 4% Lycra spandex.