Is the Ries Carrying Case durable enough for flight check in?

I haven't had any problems with a Gitzo 1548 in my suitcase. The Ries Carrying Case seems strong enough for travel by car, however I'm not sure it's adequate for air travel. I called Ries and they said "Sure It'll be fine". I'd like to hear your thoughts on this matter.

Thanks and Best Regards.

Happy Holidays.