The main area is divided into two very roomy compartments, each of which has its own zipper access at the top of the bag. On one side there is a zippered pocket. On the other side, there are 2 sizes of slip pockets and a pen sleeve. There are two zippered compartments on the front of the bag and one more on the back. Exterior: Nylon / Interior: Recycled Polyester Dimensions: 13"L x 10.25"H x 1.75"D Weight: 0.62 lbs Volume: 5L Adjustable crossbody strap Monkey keychain Shortest strap length: 29.5" Extended strap length: 55.5" Never used