I sadly need to sell these, I only used them twice. The size is 6 which is equal around 39, my size is 39. The issue for me is that my feet are too wide for them. My feet kinda "fall over" the edge of the sandals+they are quite tall.
The lenght fit me fine though. Except that, they look cool. So don't buy them if you have wide feet :/ (1st picture is from the shop, the small cross is not on. I will clean them before of course)