Yeah, this is a down sleeping bag -- you gotta keep it dry! Get a roll up dry bag that will keep the water out. I don't even know if that stuff sack material will keep the water out (let alone the hole at the top).

By the way, I got my dad this bag for our hiking trips. It's actually a very nice bag. A great buy for the money. Very compressible and warm. Make sure to hang it up when you aren't using it -- don't let it sit compressed in the bag (it can hurt the loftiness).