CloudLine Merino Wool Crew Hiking & Trekking Socks - Medium Cushion - for Men & Women These are the softest merino wool hiking socks on the market, made to fit both men and women. Our medium weight merino wool socks are designed with standard cushioning through the whole sock for comfort, warmth, and performance. 63% Ultra soft merino wool, 33% Nylon, 4% Spandex. Made 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 WHY MERINO? Merino wool comes from a species of sheep that produces very fine and soft wool. It is not coarse and itchy like other wool socks, but amazingly soft, while still retaining all of the wool's other wonderful properties. Your new favorite socks. Buy some today.