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 fiber, in that the fibers lie parallel to each other; traditionally, long, fine staple wool was spun to create worsted yarn. Worsteds differ from woolens, in that the natural crimp of the wool fiber is removed in the process of spinning the yarn. (Source - Wikipedia)