Mountain MistFiber 3 lb Fiberloft Polyester Stuffing

Is this that soft slippery feeling stuff or does it have that kind of squeaky feeling when you rub it together between your fingers?

Is this chemically treated? For example with fire retardants? I'm looking for pure and untreated filler.

Would 1 bag be enough to restuff a VERY LARGE stuffed animal? The big kind you see at Easter and such that are bigger then your kids?

Is it hypoallergenic