Worsted

Firm-textured, compactly twisted woolen yarn made from long-staple fibers and the fabric made from such yarn. The essential feature of worsted yarn is straightness of fibre, in that the fibres lie parallel to each other; traditionally, long, fine staple wool was spun to create worsted yarn. Worsteds differ from woollens, in that the natural crimp of the wool fibre is removed in the process of spinning the yarn (source Wikipedia).