Perfect for carry on for Alaskan Airlines to Hawaii. Do not overstuff or fill it up completely or they will make you check it. You can only fill the main clothes area, not the rest of the top zippered areas. I like how it rolls. I bought one for my 9 year old too and she was able to roll it. It's not that easy to carry sideways because there is no side handle. There should be, but there are only handles on the vertical top and the top when it is laying down, not on either side. I would have given it 5 stars if it had side handles.