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. CoolmaxA(R): Engineered to move moisture away from your skin and dry fast in warm conditions. True Seamless(TM): Undetectable seam fusion for an ultra smooth, invisible feel. SPECS Cushion: Mid-level cushion density under foot. A warm and ultra-comfortable choice when conditions demand it. Micro Crew Height: A shorter, more concise take on the traditional crew height. Peeks just above the top of a standard hiking boot. 37% Nylon 34% CoolmaxA(R) Polyester 26% Acrylic 2% LycraA(R) Spandex