I purchased these and received last week. I'm a Vionic junkie so I know at least with most my vionics to order a size smaller  because they stretch to my size in a week or so at least that's what happens with my tides and my slip on walking shoes. I bought my size 10 and they would turn into an 11 after a week so I started buying a,size 9  that would stretch into a 10. Sad to say not with these they were small out of the box I ordered a size 9 and no way were they going to fit too bad because they were very cute and I really wanted to take them on my Turks and Caicos trip next week. But they only had size 8 and 9 so I had to return for a refund. Sizing is really off for this style.