These run one size too big! Well, maybe 1/2 size too big if you have wide feet or wear super thick socks. Size 7 = US size 8. So I normally wear european size 37 (US size 7 usually fits fine, though not in this case).
The design is cute and the quality is alright, the the rubber smells A LOT. The shoes STINK to be honest. I will keep them outside hoping the smell goes away. Not putting them in my closet for sure!