Details Let's get to the point: the Darn Tough Thermolite® Edge Over-the-Calf Midweight Ski and Snowboard Sock Men's is for skiers and riders who love the simplicity of a silky smooth, next-to-skin feel with incredible response and precise fit. RFL-Thermolite® packs all the benefits of ultra-lightweight, quick-drying RFL socks, but in a vegan-friendly, hypoallergenic alternative to wool. Material Thermolite® Engineered to be warm and dry fast to keep you in your comfort zone longer. 60% Polyester, 38% Nylon, 2% Lycra Spandex Length Men's Over-the-Calf Height 17" (43cm) Heel to Cuff 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. All Weather Performance Cool in the summer, warm in the winter. Sustainability From responsible sourcing practices to livable wages in the community, Darn Tough Vermont is committed to progressive, positive, growth. Their Unconditional Lifetime Guarantee supports a product that lasts a lifetime, and very few are needed since they can be worn consecutively due to their lasting comfort, durability and fit. Yes, really. Unconditionally Guaranteed for Life If these aren't the longest lasting socks you've ever owned, you can return them to the manufacturer for another pair. No receipt needed, just the pair in question. No strings. No conditions. For life. Yes, really Weight Midweight With the outdoors in mind, this is where Darn Tough hiking socks and ski socks made their name. More natural insulation, and so durable they are a thru-hiker staple. Ski Cushion Streamlined, low profile ski and snowboard socks with cushion feature terry loop comfort underfoot, and a shin pad. Darn Tough Thermolite® Edge Over-the-Calf Midweight Ski Snowboard Sock Men's