They don't have an undercoat.
As for the weight, if your breeder knows their lines behind their breedings, they should be able to give you a very good *estimate* of how big this girl will get. On a
guess, she could be up to 8 lbs based on her weight right now, but then again, she could be only 4 1/2 - 5 lbs. Your breeder is probably the best source for the info, and/or any of their previous puppy buyers that have Biewers from the parents this girl has.
