Otherwise, if it gets too heavy, then you need to purchase some helium inserts for it. You don't want to get too many in there, though. You would not want your pack to float off away from you.
---Bob Gross---
Bob,where do you get these inserts? How big are they? What do they cost? I'm sure that I could use a bunch of these! Bad back, you know. Please let me know!!!!



