DETAILS Drink from enough streams and you&&';;ll eventually get an explosive reaction. Look closely at this hike sock and you&&';;ll see what we mean. However, a blown-out seam should be the least of your worries. That&&';;s why the Number 2 is #1 when it comes long-lasting toughness and active comfort. 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. 63% Merino Wool 35% Nylon 2% LycraA(R) Spandex Additional warmth and protection are the signature characteristics of midweight yarns in the Hike/Trek category. CUSHIONING DETAILS CUSHION Cushion in the Hike/Trek category features terry loops under the foot reaching above the ankle for comfort and protection.