ACKS THAT GO THE DISTANCEWe shifted our gears to update your go-to pack so youre never left trailing behind. You get the same trustworthy M.U.L.E.® with slight body modifications for a smooth ride and fit. Both Mens and Womens feature smart storage options, Air SupportBack Panel, lightweight materials, and max ventilation to keep you feeling and looking cool on the trail.Key Features:Podium Dirt Series 21 oz (620ml)  IncludedAir SupportBack Panel With Body Mapping TechnologySecure Zippered PocketsIntegrated Tool OrganizationExternal Pump SleeveReflectivity