The Think Tank Airport Series takes it to the serious traveling photographer, with three backpacks—Airport Accelerator, Airport Commuter, Airport Essentials—designed to haul gear wherever it needs to go. Critically, all are dimensioned to meet international airline carry-on requirements, stowing overhead, or with the Commuter and Essentials, even fitting under-seat. Attention has been paid to the harness system: lightweight, easily adjustable, with solid lumbar support, works with Think Tanks Pro Speed Belts for even more support. There are quick access pockets for laptops, tablets, passports and paperwork, a tripod mounting system, a bottom hinge that opens up the main compartment in one smooth move, and a rain sheet. Consider the bar raised in photography-specific backpacks. Check the video…