When I first started using these I was surprised they seemed a little short especially around the heel. I was concerned they would slip off during my pilates class. However, they are so snug around the ankle (not in an uncomfortable way) that they didn't move. The bottoms are excellent! the sticky spots have stayed in place, no scratching off from the end of the reformer. Only the glitter from the top part is falling off, but that doesn't concern me. I would definitely repurchase.