When the trail is calling and it may be several days before you come home, slip into the comfort of the Full Cushion Boot Sock from Darn Tough. The new Darn Tough sock will take every step of the way with you what ever the weather may bring. With a fine gauge Merino Wool and a seamless stitch the Boot Sock offers warmth when it's cold and cool when it's hot. What more could you ask for than a sock that can keep up and read your mind.• Full Cushioning throughout this entire sock provides support and comfort without unwanted weight and bulk• True Seamless• 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• Merino Wool is naturally antimicrobial that repels bacteria and odor• Still made in Vermont• Guaranteed for life• 69% Merino Wool, 27% Nylon, 4% Lycra Spandex