Just got my first pair of BV flats (from the website) they were on sale, love them. But I had to go up to a size 9. I usually wear an 8. Had to go up a size for Chanel and Prada as well, but Chloe an 8 fit me fine. I wonder why it is that some designers have such a variance in the so called "same size", the cut is not that different. Anyone else have this happen to them?