Single track training, early morning road runs, trail runs with autumn leaves underfoot, the Darn Tough Run Quarter Ultra-Lightweight Men's Sock features ankle coverage in a silky next-to-skin ribbing, breathable flex zones in the forefoot, and arch support to reduce fatigue. A blend of nylon and merino give this sock an edge on keeping your feet dry and comfortable, wicking moisture away from your foot with fibers that continue to feel dry and comfortable even on hot days. Nylon makes this a more elastic sock with a silkier texture than you’d find with a polyester blend so not only will your feet feel comfortable0 they’ll also feel like you’ve gifted them with a little bit of luxury to make up for the pounding they get on the trail.