The largest for your professional DSLR, battery grip, mounted lens, and two to three additional lenses. According to Lowepro, it fits: DSLR camera with professional dimensions, battery grip, and attached lens (e.g., Canon 5D Mark III with 70-200mm, f/2.8), 2-3 additional lenses, 1 compact tripod, monopod, trekking poles, and a 10" tablet in the CradleFit device compartment.

Designed for photographers who need a versatile backpack to protect their camera and outdoor gear. The Flipside Trek perfectly balances the camera compartment and freely available storage space and is equipped with all the features you would expect from an outdoor backpack.

50% camera compartment, 50% freely available storage space for personal items. The body-hugging opening of the Flipside allows for easy access to the gear without having to set the backpack down. The ActivZone harness system provides all-day carrying comfort. Multiple attachment points allow for increasing or decreasing the amount of gear attached externally.

The integrated All Weather AW Cover can be unfolded from a zippered pocket on the top of the backpack to provide additional protection against rain, snow, dust, and sand. The padded CradleFit compartments offer support and protection for your tablet. The stretch mesh pockets on both sides of the backpack can accommodate water bottles and other items.