I have one similar to this, what is nice is if you turn it around, it makes a nice backrest on long trips.
http://cobrausa.com/kawasaki/vulcan_900_classic_06_15/motorcycle_accessories/I need a sissy bar rack like you have. Where did you get it?
No not tall enough but its wide enough to lay them down. Dimentions of the pack are 12 wide 10 high, 8 deep. A carton is 11 1/4 long or so i read. You could also stand them up verticle in the two outside mesh pockets. They should hold nice. There is also a separated area inside on the front panel that would hold several loose packs and keep them from getting crushed. This packs taller brother the vegas is what you want if you need to stand them vertically.Very nice tail bag.Does it seem tall enough to hold a couple cartons of cigarettes?