This is my fourth pair of Propet M3850 shoes. Something has changed with this last couple. The shoes are the same size as I usually buy them (US 9.5, width 3E) but the feeling is completely different. The toe area appears wider, which makes the shoe feel lost. Perhaps this is the result of a change in the material that makes up the sole. Now it is a non-slip rubber sole. Other pairs I've bought have molded foam soles. The material in the heel area of earlier versions of the M3850 was alsoβ¦