Expanding pannier style trunk bag for use with Racktime rear racks equipped with the SnapIt system Made from 900D nylon with a water resistant exterior Fold out pockets on either side expand to panniers for additional cargo space Length adjustable shoulder strap with grip textured shoulder pad for off the bike use Adjustable cordage on top for stowing jackets or other loose items Two inner compartments, one with mesh zippered pocket SnapIt 13.4x10.2x4` 1403 c.i. Black XXX-Large (700+ c.i.)