High Sierra Fat Boy Day Pack - Prarie Fields Duraliter Ripstop, 600D Duraliter, Waffle Weave, 1000D Duraliter Dimensions: 19.5 inches x 13 inches x 7 inches and 1.87 pounds Large, multi-compartment design Deluxe organizer with zippered mesh pocket, pen pockets, and removable key fob Zippered accessory pocket on the front and MP3 player pocket with headphone port S-shaped VapelT mesh AirflowT padded shoulder straps with suspension system, thumb-ring pulls and cell phone pocket