You may or may not have heard about it, but there’s a reason why the Levi’s brand is so popular to this day. Back in the day, the first Levi’s 501 had copper rivets that made their pockets incredibly durable. It was marketed as a long-lasting pants design so everything -- including the pockets -- should be tear-proof. But there was a problem with the copper rivet. They tended to scratch the surfaces their customers would sit on. And it wasn’t long until these guys started complaining. At first, Levi’s tried to fix it by covering the copper rivet with denim. It was a nice try. But alas, the denim would eventually fade and the copper rivet would show, scratching surfaces as it usually did. So in the end, they took away the copper rivet and used a new stitching technique to keep them in place: bar-tack stitching.