strong fabric produced by the rib variation of the plain weave and characterized by fine, closely spaced, crosswise ribs. It is made with heavier filling yarns and a greater number of warp yarns and is similar to broadcloth, which has even finer, more closely spaced ribs.

Though originally made with a silk warp and a heavier wool filling, poplin is now made of a variety of fibres, including silk, cotton, wool, and synthetic types, and with combinations of such fibres. It is used for shirts, pajamas, women's wear, and sportswear and also as a decorative fabric.