One quick note. Granted real cloth has thickness, but if you ever look at it, closely, depending, of course, on what type of cloth it is, most cloth really isn't THAT thick. And really thin cloth does usually have a hem, which actually gives the edge strength. And finally, almost any fabric that has thickness is going to really mess with the Cloth Simulator, and it will probably fail as the two sides of the fabric try to pass through each other and explode or something to that effect.