Constructed by waterproof 1000D Nylon + waterproof coating material, high intensity and durable. Lid flap closure with buckle fastening and top zip pocket and front zip pocket. Large main compartment with drawstring closure, 2 open pockets inside and 1 pouch seamed,Side pockets: zipper & molle pocket and mesh pocket with drawstring closure. Compartment with top zip closure next to the back and multi pockets for small gadgets like pen, flashlight, etc. Adjustable shoulder strap