REMOVING TROUSER PLEATS The edge of the pleat is at one with the front crease on the straight grain of the cloth. It is not good form to cut trousers at an angle, as they will not hang straight. Lets keep that in mind. First step the waist band must be removed. As the main pleat unfolds, it comes out in the direction of the pleats opening.In the reverse pleat, the cloth comes out to the side and the small pleat follows it. See the dotted lines, this is the cloth to be removed. The pocket of course, must be removed and then replaced. The waist band is then returned and the crease line remains is its proper position. The regular pleat unfolds to the front. This means the entire fly assembly must be removed and then replaced. A more time consuming job.You can see that if the cloth were cut at the side, the crease line would be pulled to the side. This would be the same as cutting the trouser front at an angle, and we know thats not good. So much for the main pleat. the small forward pleat would be unfolded to the side. this means redoing the pocket also. On the reverse pleats, both pleats are cut off at the side.at the same time. Less labor time. This is why removing reverse pleats is more practical.