Worsted (pronounced “WUSS-tid”) is a type of smooth, strong yarn made from long wool fibers that have been combed and twisted tightly together. The word also describes fabric made from this yarn.

Unlike fuzzy sweater yarn, worsted yarn creates a sleek, durable fabric that holds its shape well. Tailors use it to make suits, dress pants, and other clothing that needs to look crisp and professional. The tight twist of the fibers means worsted fabrics resist wrinkles and pilling (those annoying little fuzz balls that form on worn clothing).

If you've ever noticed that some wool clothing feels scratchy and fuzzy while other wool items feel smooth and refined, you've experienced the difference worsted makes. A wool blanket might be soft and fluffy, but a worsted wool blazer has a completely different texture: smooth, firm, and built to last.