DETAILS 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. Naturally Antimicrobial: Repels bacteria and odor. Guaranteed For Life: No strings. No conditions. For life. Merino Wool is fast drying, breathable and odor resistant for all-day comfort. True Seamless(TM): Undetectable seam fusion for an ultra smooth, invisible feel. SPECS The micro crew is a shorter, more concise take on the traditional crew height. Peeks just above the top of a standard hiking boot. 54% Nylon 43% Merino Wool 3% LycraA(R) Spandex The versatile lightweight yarns in the Hike/Trek category maintain a low profile in modern trail footwear and proper performance on multi-day trips. CUSHIONING DETAILS CUSHION Cushion in the Hike/Trek category features terry loops under the foot reaching above the ankle for comfort and protection.