best backpacks for travelling on airplane LOVEVOOK Large Travel Backpack Women, TSA Carry Backpack for Airplanes, 40L Personal Item Travel Bag for Women fits 17" Laptop,Waterproof Carry on Bag Approved with 3 Packing Cubes Dickies Mini Festival Backpack travel-essentials-page Color:Canvas Brown

best backpacks for travelling on airplane LOVEVOOK Large Travel Backpack Women, TSA Carry Backpack for Airplanes, 40L Personal Item Travel Bag for Women fits 17" Laptop,Waterproof Carry on Bag Approved with 3 Packing Cubes Dickies Mini Festival Backpack travel-essentials-page Color:Canvas Brown

Dickies Mini Festival Backpack Navy - Office Depot

The large measures 33x58x33 which puts it just over most allowances

travel-essentials-page

Color:Canvas Brown

However, I would wager that mine would come in around the 40-45 pound mark, of course being its heaviest at the start of the day (as if I needed an incentive to drink more water/eat more food!)