With my fallen arches and overpronating feet, Spenco shoes and sandals are the only shoes I have found to be comfortable for extended periods. They have a deep heel cup and just the right amount of arch support. I must have ordered and returned 20 brands of shoes looking for anything as comfortable as my Spenco's (their styles are very limited). These SOLES have the same heel cup and arch as my Spenco's! They feel great! Now I'm looking for a whole SOLE shoe for winter.