Performance socks that won't slip, bunch, or cause blisters Seamless Fine Gauge Knitting gives lasting comfort and durability Breathable Merino wool wicks moisture, repels bacteria and odor Controls foot temperature in hot and cold weather 5% of sales go to ATC education/maintenance programs Guaranteed for life SPECS Best Use:   Hiking, Casual Fit:   Regular Fabric:   61% Merino wool, 36% nylon, 3% Lycra spandex Cushion:   Mid-level Height:   Micro Crew - shorter than traditional crew height