I ordered these for stability druing my pilates practice and have been very happy with their effectiveness. They fit securely, the elastic cross straps work well to stabilize the low profile and the non-slip base makes all the difference in some poses (Wanda chair, standing platform, bridges etc). However, I have a high arch to start with and have some extra height due to a foot surgery a couple years back, so for me the elastic bands are tearing at the stitches on my bad foot. I could stand forSee full review