If you're serious about hiking, these are the socks for you. Premium merino-wool blend wicks moisture, breathes and naturally resists odor. Targeted cushioning provides comfort in just the right spots to keep you going all day. 55% merino wool/6% nylon/36% recycled nylon/3% elastane. Machine wash and dry. Strategically placed cushioning for comfort without the bulk, making them perfect for today's lightweight hiking shoes. Mesh zones for added breathability. Indestructawool™ technology with extended durability zones ensure long-lasting hiking performance. Comfort welt makes sure they never slip in your boots. Virtually seamless toe for enhanced comfort without chafing. 4 Degree elite fit system for a dialed-in, performance-orietned fit. Assembled in the USA with imported parts. Men's Smartwool Hike Targeted Cushion Crew Socks Black Medium, Wool Blend/Nylon