Originally Posted by
Bonehead
I have started traveling with a large day pack stuffed to the gills (about 1' by 1.5' by 10"), and can cram that into the overhead bins on the 145s. If a carryon is malleable and not much taller and wider that 1' (or a tad more), you can probably cram it in.
I carry my weekend bag (medium duffel) on CO RJs all the time. Squish-ability is definitely the key.