Details Looking crusty after a 30-day work week doesn't mean feeling crusty, too. The women's Darn Tough Steely is a full cushioned work sock that's reinforced in the toe box and high-traffic areas so you can jam hard on work, not on your toes. Material Merino Wool: The ultimate fiber for breathability and comfort in all conditions. 53% Merino Wool 44% Nylon 3% Lycra® Spandex Length Boot Height: Sits mid-calf for added protection and warmth. A sturdy companion. Details Performance Fit: No slipping, no bunching, and no blisters. Fine Gauge Knitting: Unprecedented durability and Darn Tough's 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. True Seamless™: Undetectable seam fusion for an ultra smooth, invisible feel. Weight Cushion: Mid-level cushion density under foot. A warm and ultra-comfortable choice when conditions demand it. Darn Tough Steely Boot Sock Cushion Socks with Full Cushion Toe Women's