Constructed by waterproof 600D Nylon, 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. * 1 compartment with top zip closure next to the back and multi pockets for small gadgets like pen, flashlight, etc.Padded contact surface: spongy mesh pads on back, comfortable & high ventilation. * Adjustable shoulder strap with detachable pad and quick-release buckle. A Velcro attachment(Max.5cm width) on the back to hold the belts or other things.