(VersaceMan @ 03 Oct. 2004, 10:27) Darts are a curved stitch sewn into the back of a shirt; one on each side. Â They pretty much taper the sides in a bit and give a more trim fit.
They're not just on shirts. Look at the seams perpendicular to the back pockets on your trousers or perpendicular to the pockets on your jacket front. Those are darts.
Oops, forgot to add jackets. My favorite jacket gained it's place as my favorite because of the beautiful darting on the front that gives it such a nice slim fit, and gorgeous lines. I was unaware that trousers had darts though. I'm going to take a peek in my closet and check that out.