I wasn't sure what size to order, but with Prime Day, I couldn't resist the half price. I wear 7 to 7.5 and I have a wide foot, so I ordered 7.5.  It's a little narrow, but I loosened the laces in the wide area and they work just fine. I've been wearing them for two weeks and they seemed to have stretched a little bit...good for me. I have a high arch, so for normal feet, these shoes should be okay. I tend to get arch supports for many of my shoes anyway. By the end of the day, my feet throb a little, but it's tolerable. Easy to clean with just a damp towel, but I need to find out how take out more stubborn stains.