All day comfort and durabilityThe Micro Crew Cushion features Darn Tough's unique technology. Their True Seamless construction gives you a lightweight, dense sock with an undetectable toe seam that ensures a comfortable fit with no slipping or bunching. Made in Vermont with fine gauge merino wool, these socks keep you cool in the summer and warm in the winter. Anti-microbial and breathable, they can be worn more than once while you're traveling or if you just missed laundry day. This sock hits just above your boot line and has extra cushioning beneath the foot for support out on the trail.