Diver Dennis
Contributor
This backpack only has room for 15" laptops and mine is 17". I use the slot for storing papers and manuals. It's been about 8 months since I have been on an internal PI flight but had no problems. I've been on Cathay, Singapore and Malaysian in the last few months and had no problems with 2 carry ons even though some of those airlines allowed only one plus a personal item. I use a PorterCase for my main carry on and it doubles as a luggage cart. http://www.portercase.com/