Update: My original review is below but I have had to update my rating from 4 stars to 1 star because the zipper broke after just my third use of this bag.  Clearly this is not good quality.

The dimensions of this bag are technically larger than most carry on items are allowed to be.  That being said, I have never been questioned about having this as my carry on item.  It is great for keeping your suits, shirts, and pants relatively wrinkle-free and you can bring your computer or tablet onto the plane via the easy to access pocket in the front. I would rather this bag be slightly smaller so the dimensions would match the airlines standards but until I get questioned about the size I will continue to use this as my carry on.