After researching many bags online for travel, I settled on this one for a recent trip to Mexico because I did not want to check any luggage.  It fit in the overhead compartment with no problem and I had it stuffed to the max.  It doesn't look like you can fit much in here but it holds a ton.  It has many outside pockets which I love.  It's pretty light weight when empty too.  The extra outside locking buckles made it nice and secure for the journey.  I was able to comfortably glide this along the airport, on the plane and thru the hotel with no issues.  The handle popped in and out easily for the ride on the security belts or to throw it in the back of the airport transportation van.  Between this and a small back-pack I had more than enough space to carry everything for my 5 day trip to Mexico without having to check, and of course, I over packed.  Next time I can probably leave the back-pack at home.  I got the graffiti color which is fun and stands out amongst the many black cases you will see in an airport.  I'm planning on buying my boyfriend one for our next International trip so he can travel as stress free as I did and he won't have to lug around his heavy duffle bag on his shoulder.  I can't wait to use it again next week for a short trip to San Diego.  Great bag!