It's called the "teddy bear dog." Half shih-tzu and half bichon frise. In Canada we refer to the Shih-Tzu and Bichon Frise cross as Mollydogs instead of teddy bear dogs. I have two of them and they are wonderful.
Meet Simba, a German mountain dog who belongs to a giant breed called "Leonberger". These magnificent creatures can weigh 170 pounds, but are incredibly disciplined, loyal, and gentle. I WOULD THINK WAY MORE THAN 170 POUNDS!