Clan Tartan—The plaids of the various highland clans of Scotland.
Clay—A name given to serges, worsteds, and diagonals woven after a process of J. & P. Clay of Haddersfield, England.
Coating—Those woolen and worsted fabrics most especially adapted to men's dress and overcoats.
Corduroy—A thick cotton pile material, corded or ribbed on the surface; used for men's, women's and children's wear.
Corkscrew-worsted goods—So-called from its fancied resemblance to the twists of the corkscrew.
Cotton worsted—All cotton or part cotton worsted-wove cloth.
Cottonade—Stout cotton cloth in imitation of woolen or worsted; used for men's trousers.
Covert—A twill-woven cloth sometimes with full face, sometimes sheared to imitate whipcord.
Crape cloth—A stout worsted fabric with surface in imitation of silk crape, used for dress coats.