I bought the shoes for my son. He has actually now shoe size 25 (he is just at the beginning of the LT size. WMS). Because of the reviews I bought the shoes one size smaller in size 22/23. It fits, but I think the size 24/25 would have gone. He is now just almost in front. And actually, a certain buffer should always be available yes. The shoe will therefore might not fit to the end of the summer. I have therefore bought him even the "Playshoes Aqua shoes, slippers Hai" in size 24/25. Because I know for sure that they fit to the end of the summer. Because he had already last year in size 22/23. As the shoe behaves in the swimming pool or water, I can not say yet. The "Haischuhe" were here super and the soles are indeed identical.