WOOOOW THIS THING IS HUGE! I order two to transport some stuff overseas. Of course I had to pay extra to check these two giant bags in at the airport but actually, it ended up being cheaper than shipping them! That came as a huge surprise to me. I was expecting some huge bill but instead, it was just a couple hundred bucks... FOR BOTH!Anyway about the bags:The interior space is MASSIVE. Larger than the dimensions listed on the item's page. I had more space than I thought I'd have so I was able to pack a few more things in. And then the side pockets give you even more space.The zippers allowed me to place a TSA-approved lock on them so it would stay closed throughout the flight. Security did, however, open the lock to examine what was inside these massive packages. They didn't take anything out but left a note saying that it had been examined.Build quality looks surprisingly nice. The wheels and handle feel really strong and provide nice, smooth motion. I had 70 lbs in 1 of them and it handled it like it was nothing. I also lifted that 70 pounds by the two straps and nothing tore or anything.Anyway these were MORE than a bargain if you consider what other duffle bags of this size (or actually much smaller) cost. Very happy with these :)WARNING: I accidentally cut some of the fabric while opening the box (I was in a huge rush so I was being sloppy) so just be careful when you open the box.