United Airline personal item sizing...
my backpack is softsided and very squishable, it'll just be holding my electronics, chargers, etc. Certainly won't be filled to the rim. Roughly, it measures 18 x 15 x 9. Would that be considered as a 2nd carry-on? (i dun wanna)
main carry-on is fine, it measure 20 x 13.5 x 8