Ships in 1-2 business days | Based in Vermont | Est. 1978 Darn Tough evolved the look but kept the same soul. They donate 5% of sales to help support the Appalachian Trail Conservancy&';s outdoor education programs and maintenance of America&';s first national scenic trail. Now that feels darn good. 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 the 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 _______________________________________________ Specs Height: Micro Crew Weight: Midweight Sizing: Size Men&';s Women&';s EU Small 5.5-7.5 7.5-9.5 38 - 40 Medium 8-9.5 10-11.5 41 - 42 Large 10-12 12-14 43 - 46 X-Large 12.5-14.5 - 46 - 49 Materials: 61% Merino Wool, 36% Nylon, 3% Lycra Spandex Made in the U.S.A. _______________________________________________ Wash and Care: Machine wash in warm water on a gentle cycle with socks inside out. Do not bleach. Tumble dry on low or hang dry. Do not dry clean.