That is to say I could feel the undulations of the support structure. But with these sneakers and my insoles I am able to walk comfortably. These sandals are 9th size and a little bit large. I reviewed an installation video several times and the drove to the Auto Skills Center on a nearby military base to utilize the lift rack. Ive had them 6 months. I immediately went to my laptop and started the return process and printed the return label. The only downside is that it can sometimes get really cold. It is much less expensive then what I purchased in the doctors office and works considerably better. Rhino always has quality products so I would definitely recommend! 7) The fabric of the shoe balls up and looks like a gross old polyester t-shirt.