I don't know about the whole size problem because mine fit good, but feet can grow bigger and change over time. If you happen to be over the age of 40 your feet can grow half a shoe size every 10 years. Even the Tendons and Ligaments lose their elastiicity. Lower arches etc...No matter what age you are you should measure your feet. Don't you love a new pair of shoes?! But white shoes, I'm afraid of getting them dirty. I got some shoe protector spray and some white shoe polish, just in case. ;-)