Assistive devices, like strollers, wheelchairs, or crutches are allowed in addition and aren't subject to hand luggage size ...

The most common personal item size for international flights is 15. ... and an extra layer of clothing in case the airplane is a bit chilly. I recommend keeping your personal item small and light ...

Linear inches: A few airlines have linear inch restrictions for carry-on baggage, meaning the airline gives one number for ...