XP collapsible footlocker
If you need more bag than the issue FOR65 Deployer, the XP is the way to go, again, the ideal loadout is the Deployer XP for your heavy stuff and the FOR76 SmartPak snapped to the top with your lightweight / clothing items perfect for wheeling all your kit through the airport/tarmac, and the FOR76 SmartPak detaches for carry-on.