I had been on a quest for a good substantial slipper or comfortable shoe to accommodate my very wide and damaged feet with a high arch to boot, that could stand up to having a lift added to the right one because I have a significant leg length discrepancy. I ordered and returned seven or eight pairs before I discovered these. Not only did they fill all of those requirements, but they are like walking on air pillows too. The soles are constructed of a very soft rubber-like material with a textureSee full review