I am not sure what breed this dog is that I saw at a Rhode Island dog show. But the dog was very white with soft long wavy hair with a body like a golden retriever. After looking through "The New Encyclopedia of the Dog" by Bruce Fogle DVM, I think this dog may be a cream golden retriever or the Slovensky Kuvac breed. On the other hand, various websites online make me think it might be an "English cream golden retriever."
In any case it is fun for me, as an artist, to see how much color is in "white". If you know much about the different dog breeds, let me know what breed you think this white dog could be.