any bag big enough to get all your stuff in that doesn't weigh over 50lbs. and if you got an HPA tank make sure your regulator is removed from the bottle or you'll be talking to the TSA's and then the police and then probably in jail.
May not be best the cheapest but I use to UPS my stuff to the hotel where we are staying at. They usually have a business center where you can mail it home after your done.
I have a nxe bag and a empire e and I like both, but the empire bag is definitely more organized and user friendly, And really durrable! The nxe is newer and starting to fall apart already too!
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Custom Valken V CAM ego 11
12" deadly wind barrel with Stainless freak inserts and DW apex 2 adapter and CF shroud
custom painted pinokio hopper with p board, virtue speed feed.