Probably not. The polar bear’s skin is actually black, as evidenced in the patch on the nose where no hair covers it. With translucent fur, they would be at a distinct disadvantage in hunting, as pink instead of black would show through everywhere. Thus, evolution has likely made arrangements to exclude albinism in polar bears, or if they are born, they starve early on. Doing an image search on Google, all I could find were fakes and albino black or brown bears.