Merino refers to a special breed of sheep famous for producing exceptionally soft, fine wool. Merino sheep originated in Spain centuries ago and are now raised around the world, especially in Australia and New Zealand, which produce most of the world's merino wool.

What makes merino wool remarkable is how soft and comfortable it feels against your skin. Regular wool can feel scratchy and itchy, but merino fibers are much finer and smoother. A merino sweater feels completely different from a typical wool sweater. The fibers are also naturally good at regulating temperature: merino wool keeps you warm when it's cold and helps you stay cool when it's hot, which is why hikers, skiers, and outdoor adventurers often wear merino base layers.

Merino wool has other useful properties too. It naturally resists odors (so merino socks stay fresher longer), wicks moisture away from your skin, and stays warm even when wet. These qualities make merino popular for everything from athletic clothing to dress socks to cozy winter hats.

When you see “merino” on a clothing label, it signals quality and comfort. The wool comes at a higher price than regular wool because merino sheep produce less wool per shearing, and because the fine fibers require careful processing.