VANGUARD Sedona 51BK Backpack (Black) In Daypack mode, the Sedona 51 Backpack can hold one pro DSLR with lens attached, 3-4 extra lenses (70-200mm f2.8), a flash unit, accessories and a 13.3" Ultra book with personal gear storage in the upper compartment. The Sedona Backpack provides additional storage such as a bottle holder, a front accessory pocket for a tablet, memory cards and cables and storage for personal gear in the upper compartment (when not using as a gear pack). Protect your gear from rain and dust with the included rain cover (discreetly tuck this cover away when not in use). Additional gear protection is provided with a sealed waterproof zipper on the main compartment of the Sedona Backpack. The included hydration-ready pocket offers easy-access to a 1.5 liter hydration reservoir (not included) and makes the Sedona backpack perfect for hiking. A Multiple Hanging System includes two higher front straps to hold large accessories such as sleeping bags. Nylon webbing on both shoulder straps allows accessories to be hung where they can be easily accessed.