Two full side openings allow easy access to bag contents while bag is still mounted on bike Fully adjustable sissy bar mounting system goes on in seconds over any size and style sissy bar pad; once adjusted for your size pad, you never need to adjust it again Rigid construction provides rider support and can be leaned back on when mounted on backseat Multiple exterior pockets Internal adjustable shelf Raincover included Constructed of UV-resistant leather-grain composite Roll bag included for extra cargo capacity Dimensions: 15" W x 18" H x 8"D. Roll bag measures 14" W x 8?" H x 8?" D. SISSY BAR BAG DRIFTER