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. Light, adjustable, contoured harness provides comfort along with lumbar support and air mesh paneling to keep your back cool. The height adjustable sternum strap allows for the perfect fit.A removable waist belt, side water bottle pocket, tripod/monopod mounting system and seam sealed rain cover extend the versatility of this line. Adding even more functionality, these backpacks can be used with Pro Speed belts for additional support and capacity by adding components from Modular Component line.