How Big.Can A Backpacking Backpack Be For A Carry On?
How Big.Can A Backpacking Backpack Be For A Carry On? However, you can generally bring a backpack that’s up to 22 x 14 x 9 in (56 x 35 x 22 cm) in size as a carry on bag with most US-based airlines. Additionally, most airlines allow a personal item that’s up to 18 x