I bought these for a friend who has wide feet. He hadn't worn them for a week when the heel fell off and he felt sick and his foot struck the small wall next to him. A bump the size of a tennis ball appeared and we took him to the emergency room. Luckily his leg wasn't broken, but there was no reason for the heel to come off like that. A wasted day and it cost a lot of money to have it checked. The poor quality of work at the end of this show was dangerous.