I really dont think they will wear down.....but I will go back to the drawing board. I am having trouble visualizing how the leather would provide good padding. These are designed that to insert the uke neck in sideways and twist. Once in they are coming out. Its very cushy poly foam. I have experimented with other materials, and some have been stronger, just not as clean looking. I prefer functionality but if you are selling things they need to look clean. So far this latest foam is by far the cleanest looking. I would offer free refinishing if the hangers it the foam got damaged.