Darn Tough topped it off with performance arch support to reduce fatigue, flex windows for zero bunching and enhanced durability where our athletes need it most.

• 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.
• Guaranteed For Life: No strings. No conditions. For life.
• Merino Wool is fast drying, breathable and odor resistant for all-day comfort.

* Medium - Men 8-9.5 / Women 10-11.5
* Large - Men 10-12 / Women 12-14
* Extra Large - Men 12.5-14.5