Details Punches in but never punches out. The Steely Boot Sock with Cushion by Darn Tough delivers Full Cushion comfort throughout the entire sock and around the clock. Cushioning from the toe box to the top of this sock delivers the goods 24/7. Material 56% Merino Wool,41% Nylon 3% Lycra® Spandex Length Boot Sock Height: Sits mid-calf for added protection and warmth. 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. Merino Wool: The ultimate fiber for breathability and comfort in all conditions. True Seamless™: Undetectable seam fusion for an ultra smooth, invisible feel. Weight N/A Darn Tough Steely Boot Sock Cushion Socks with Full Cushion Toe Men's