The Think Tank Airport Accelerator Backpack accommodates two pro size DSLRs, 6-8 standard zooms plus an iPad and up to a 17 laptop. For the big glass enthusiasts, it will accommodate a 600 f/4 with body detached OR a 500 f/4 with body attached. For photographers who travel by air, these bags pay big dividends the three C's; Carry-on size, Comfort, Capacity. The design, build quality and functionality are second to none. Featuring integrated, quick access pockets for both laptops and iPad, top pocket for boarding passes and three robust handles ensure easy placement/retrieval from overhead bins. The Airport Accelerator makes life easier for the traveling photographer. It is designed to meet international carry-on size requirements and fit in most overhead bins.