CloudLine Merino Wool Hiking & Trekking Crew Socks - Light Cushion - For Men & Women The softest wool hiking socks on the market. Light weight merino wool hiking socks with reinforced cushion zones for durability and comfort 63% Ultra soft merino wool, 30% Nylon, 7% Spandex. Made from ultra-fine 22.5 micron merino wool. Designed for long-lasting softness Quick wicking to keep feet dry; anti-microbial to keep feet fresh; vibrant colors to keep you looking good Lifetime Guarantee. Machine Washable. Manufactured in the USA with merino wool and cushioned with your free spirit in mind. Great for hiking, biking, trekking, walking, running, trail running, or just lounging at a coffee shop WHY MERINO? Merino wool comes from a species of sheep that produces very fine and soft wool. It is not coarse and itchy like most other wool, but amazingly soft, while still retaining all the other wonderful properties of wool. Your new favorite socks. Buy some today.