Deluxe large capacity trunk bag. Includes expanding top and large side pockets. Compatible with all MTX QuickTrack racks.600 Denier Polyester Dupont Teflon Coating for superb weather resistance,Expandable main compartment, two side pockets,Integrated water bottle holder,Elastic top bungees,Insulated main compartment,3M reflective strip for safety,Detachable shoulder strap,Mounting: QuickTrack mount for MTX racks,Safety light clip,36x25x21.5-29cm,12.3L,985g,.