I've heard this complaint on here before, and I'm joining in. The first and second times I wore my VPs, they were great and quite comfortable. But now they are big at the heel and my toes keep pushing forward. Heel grips only make it worse. Haven't they invented some kind of gel sticky or something to put on the underneath side on the peeptoe area, keeping your toes in place??? I've been searching and haven't found anything.