With full, plush cushioning, the Classic Mountaineer Classic Edition Max Cushion Second Cut™ Crew Socks are just right for your long-distance and backpacking hikes. They’re made with our circular Second Cut™ yarn, which blends 50% recycled fibers from our sock take-back program and canister waste with 50% virgin Merino wool to create new socks. The elasticized arch brace offers a secure fit, and the flat knit toe seam helps with in-shoe comfort. No matter how long the hike, keep your feet comfortable with our thickest, warmest wool crew socks. Smartwool Mens Mountaineer Classic Edition Max Cushion Second Cut Crew Socks Features: Our Classic Mountaineer Crew socks epitomize comfort as our thickest, warmest Classic Edition sock. Featuring our Second Cut™ yarn Merino wool helps manage moisture, regulate temperature, and resist odors. 41% Wool-Merino 41% Unknown Fiber Content/Mixed Fibers 17% Nylon 1% Elastane