N.B for reference, why not use the quick questions thread?
I would suggest getting a plastic bag like thing that has a clickable close, like a kitchen bag. I normally get some onsite with the BB's I purchase, and they cost pennies. Then why not put them in one of the larger side pockets on the side, I have a rig like that.
Yeah bottles make way too much noise, bags are much better with this however I find, and also they become smaller but wider and easier to fit in smaller pouches