If you are familiar with Naturino and their Euro sizing, these may be true to size. However, I went by the US sizing. My daughter was a perfect size 9 when I ordered the 25 EU/9-9.5 US. These just fit and pretty snugly, no room to grow at all. I decided to exchange them for a 26 EU/10 US and couldn't be happier. They are so cute and versatile. We got them in white. A great sneaker to wear with skirts and dresses!

Update: I was thinking of purchasing another pair of these and noticed that Amazon has changed the sizing since my original review. When I first ordered these shoes, the sizing stated 25 EU/9-9.5 US. This same shoe is now described as 25 EU/8 US. Some size 26 EU colors still say 26 EU/10 US, while others say 26 EU/9 US. Confusing.