Features: Water-resistant 1680D Nylon and waterprood zipper, protect your camera accessories from getting wet.  Shockproof, removable inserted pads. You can DIY the inside space for your own need.  The inserted pads can be all taken out, so that you can use it as a normal bag for outdoor sports.  Anti-theft safety buckle, keep your treasures from stolen.  An SOS whistle on the strap buckle.  2 in 1, a small sling bag can be inserted in the backpack. When you are gonging for a short term photography event, you can just carry the sling bag for your camera and lens.  The sling bag can be also used as a normal fashion carry bag.  Adjustable back height, comfortable back straps and waist strap, very comfortable to bear it.  External hanging system for tripods, light stands and ect stabilizers.  Multiple pockets for stuffs like smarphone, charging cables, batteries and so on.  Campatible with for Nikon, for Canon, for Sony cameras, flashes, tripods, light stands, lenses, tablets/laptops under 17in and other accesssories.  Outter size: 33 x 20 x 58cm.  Inside size: 32 x 18 x 52cm( all insert pads taken out).  Sling bag size: 16 x 25 x 17cm.  Weight: 2.8KG.     Package Included: 1 x Flying Leaf FL-303D Camera Backpack.  1 x Sling Bag.  1 x Rain Cover