Purchasing any item on clothing online can be a bit of a gamble. The sizing chart available for this product is a perfect example of why we just need to use length instead of some arbitrary sizing numbers for shoes. I bought size 9 M US because my feet are 9.5 " long or 24.5cm and very regular in their splay at the ball. The fit of these shoes is great with thin socks on and detail finishes with blue are very nice. Just perfect for someone in the advertising world to look a little more creative than wearing standard black. Thanks Steve Madden and Amazon for delivering on time, and in perfect condition.