Three cheers for the Osprey Porter, it's a really excellent pack. I've got the Porter 65, which supposedly is too large for carry-on -- but I've taken several d

Three cheers for the Osprey Porter, it's a really excellent pack. I've got the Porter 65, which supposedly is too large for carry-on -- but I've taken several dozen flights with it and never gotten a word from the check-in people or attendants. Just don't fully load it and use the compression straps liberally.