I bought these water shoes for my husband who wears 7.5, this product does not come in half sizes. I decided to ordered a size 8 and it was way too big. My husband can fit two fingers in the back of the shoe. The product description should at least suggest whether to go up or down a size for half sizes. The exchange process was not smooth because it states size 7 was out of stock, however when I went back to place new order, size 7 is available. So I ended up returning the size 8 and placing new purchase for size 7. The shoe itself is okay.