you really don't need all the external pockets that are on the stealth 22. Sure if you have them you could probably fill them up with something. But even the costco has the standard 2 front pockets which are more than adequate. Also it expands a good 2-3 inches if you really need the extra space. Also even if you just bought the costco membership for a year its still less than half the cost of the stealth bag is. But obviously if you have your membership then you wouldn't factor it in the cost. Do yourself a favor and save your $300+ dollars on your first year FO pay.