Unfortunately these shoes apparently are not designed for human feet as they have nothing in common with the shape or contours of a foot. Horribly cheaply made with no lining at all to lessen chafing and they pound on each step. Extremely clever to sell them through Groupon and allow no returns as they would be inundated as soon as people tried them on. Have bought several dozen deals with Groupon and have been pleased with item and/or satisfied with final result to this point. Apparently this will be the exception.
Avoid at all cost if these abominations are offered in the future.