Rough, tough and ready to roll. The same great construction from darn tough's hiking socks goes right into their kids' socks. Built to withstand the worst conditions the great outdoors can dish out but still be ultra comfy. Happy feet = Happy campers. True Seamless construction provides a smooth, performance fit to assure thereâs no slipping, no bunching, and no blisters. With half the wool yarn weight of cushion socks, lightweight cushion socks deliver lightweight performance with the perfect amount of cushioning along the base of your foot, while 17.2 Micron Merino Wool deliver supreme comfort. Breathable and fast drying. This âall-weatherï¿½ sock stays cool in the summer and warm in the winter, plus itâs naturally antimicrobial so it repels bacteria and odorâa great feature when you need to get an extra day (or two) out of your socks. Still made in Vermont. Guaranteed for life.