I caught two of these and a smaller true pelican to collect my specimen from Dr. Who K-9. To say they are great is an understatement. They pretty much guarantee that whatever you put in will arrive at its final destination in the same amount that is left. I've flown it a few times now and it hasn't been a problem (and I haven't been charged for oversized bags). That being said I think it's close enough for most airlines.
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