The overnight I have had for the past year is somewhat large and has been gate checked when riding on an RJ so I guess that wouldn't be too bad but I thought the zippers on those PNG bags were suppose to be so much tougher because they were larger than other zippers? Well, thanks for the responses anyways. Where is the best deal on the PNG or the tavelpro...looked at crewgear.com and outermarker.com any others?