This shoe fit true to size for me. I wear size 10 in most heels. No problem with the heel slipping yet but I haven't worn them except to test for size and fit. The style is perfect and can be worn to work or to more casual events. This shoe is sexy and feminine but be aware that the height may cause that pinched skin look around the toe area. They're comfortable for a shoe with this much slope but I doubt I'd want to wear them for several hours on my feet.