The Tamrac Adventure 9 Black/Grey Backpack has been designed for a large digital SLR such as Canon's EOS 1D series or Nikon's D series cameras with a grip and a 5" lens attached, several lenses, a flash and accessories. The Tamrac Adventure 9 Black/Grey Backpack has a modern and sleek design and for security reasons, doesn't look like a camera bag and as it has been well thought through, the lower section is a completely foam-padded camera bag compartment, while the upper section functions the same as a traditional backpack to hold a light jacket, lunch or other personal items. Inside the top, a Pop-Off Pocket™ keeps AC adaptors and laptop cords organized. A separate, completely foam-padded compartment, provides quick access to a 17" screen laptop (up to 15½" x 11" x 2" in size) without having to disturb photo gear and the front pocket features Memory & Battery Management System™ which uses red flags to identify which memory cards and batteries are available. The foam-padded camera compartment has a weather flap and quick-release buckle for security and weather protection and the two mesh pockets on the sides provide quick access to accessories and water bottles and the two lash tabs on the bottom of the backpack can accommodate a compact tripod (requires accessory straps).The Tamrac Adventure 9 Backpack pack has an adjustable waist belt and an expandable sternum strap which makes it extremely comfortable to carry and also features Tamrac's Strap Accessory System™ attachment points for customizing with optional S.A.S.™ products.