“This product seemed like it might be an easy and inexpensive solution to my mild leg length discrepancy. I'm still working on adding and subtracting "slices" to get the perfect amount of lift. The inserts are well constructed and don't slip in my shoe. I like that they are a nonporous material and seem to resist compression. This makes this product better than many other insoles that I have tried that compress over time and absorb sweat. Good, clever product!”