Ogio No Drag Mach S Backpack The Ogio Mach S Back Pack takes Ogio's top-of-the-line Mach 5 backpack and re-engineers it to be 15 smaller. Full of similar great features such as a large main compartment with adjustable load divider and a fleece-lined electronics pocket, this backpack is made from a streamlined shape that resists buffeting at speed. The Ogio No Drag Mach S Backpack easily expands by means of a U-shaped zippered gusset. Features Aerodynamic molded exterior design for unmatched Air Flow reducing drag while riding Weather resistant molded exterior shell with molded graphic design Fleece lined smartphone and personal electronics protective pockets Deluxe organization panel with secure valuables pocket and adjustable load divider to evenly distribute weight Expansion zippered gusset to increase main compartment capacity Ergonomic and deluxe padded back panel for ultimate comfort Fully adjustable and ergonomic padded shoulder straps with quick exit buckles and no slip sternum straps for comfortable and secure fit Body conforming shoulder gasket for increase comfort and fit Reflective safety piping and logo for 360 degree visibility Concealed aerodynamic carry handle 1250 cu. in. / 20.54L expanded 18.5H x 13W x 6.5D 2.7 lbs. / 1.25 kg. Carbon weave PU shell, 840D Jr. Ballistic Nylon, 420D poly