If you redesign one of the most popular socks in the line you better come correct. Increased breathability with mesh panels on top of the foot, a new smooth ribbing upper that stays put forever, and extended cushion over the Achilles – just a few heavy additions to one of the lightest hike socks out there.. Features-. Performance Fit: No slipping, no bunching, and no blisters.. Fine Gauge Knitting: Unprecedented durability and our unique “put it on, forget it’s on” feel.. Fast Action Wicking: Pulls moisture away from skin. Fast drying.. All Weather Performance: Cool in the summer, warm in the winter.. Guaranteed For Life: No strings. No conditions. For life.. Merino Wool is fast drying, breathable and odor resistant for all-day comfort.. Sustainability – From responsible sourcing practices to livable wages in our communities - Darn Tough Vermont is committed to progressive, positive, growth.. Our Unconditional Lifetime Guarantee supports a product we believe will last a lifetime, and very few are needed since they can be worn consecutively due to their lasting comfort, durability and fit.. Cushion- Cushion in the Hike/Trek category features terry loops under the foot, and in the taller styles reaches above the ankle for comfort and protection.. Materials: 54% Nylon 43% Merino Wool 3% Lycra Spandex. Use & Care. Machine wash in warm water on gentle cycle with socks inside-out. Do not bleach. Tumble dry on low or hang dry. Do not dry clean.