18L capacity, waterproof main and front zipper. Padded adjustable shoulder straps, padded back with integrated luggage straps. Integrated adjustable chest and waist straps. Strategically placed D rings for added carrying capacity. Mesh side pocket for water bottle. Adjustable side storage straps for a tripod, rod tube, hiking sticks, jacket, etc. Removable padded laptop storage compartment. Internal zipper pocket for secure storage. Rugged bottom design to resist chafing.