Darn Tough Men's Climber Guy Crew Light Socks When you're not afraid to take the Darn Tough route. The Climber Guy delivers legendary Darn Tough construction to take on whatever comes your way. Because there's a little climber in all of us. 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: The ultimate fiber for breathability and comfort in all conditions. True Seamless(TM): Undetectable seam fusion for an ultra smooth, invisible feel. 66% Merino Wool 32% Nylon 2% Lycra(R) Spandex