The Lowepro Flipside Trek BP 450 is a large versatile camera backpack built for travelling and outdoor professional photographers. The backpack strikes a perfect balance of camera compartment space, and open space for personal items.The Trek BP 450 AW is capable of carrying a professional DSLR with a battery grip and attached lens, 2-3 extra lenses, speedlight, compact tripod or monopod, 10 tablet, water bottles and other personal items.