Bird Nest Adventure Bag is the sucessor of Bird Nest Phantom Bag. In this 33L Backpack you get 4 Compartments in the Main Body with 2 small additional pockets for quick access. Bag is made of Ripstop Polyester and is hard padded on backside with a 17" Laptop Support. Comes with multipurpose velcro patch which has more pockets and slots now. Bag comes with free rain cover builtin bottom with shock absorber shoulders.