EXPANDABLE Heavy Duty Reinforced 600 Denier material (PU backed) stylish modern design Expandable to a huge 44 litres with hard base and back to hold shape on the bike Two side pockets for extra storage plus front and internal security pockets (internal see through) Seat/carrier mount and sissy bar rack mounts (adjustable with extra security strap) Multi adjustable sissy bar mount straps (adjusts to all the popular rack/bar brands) and security strap so the bag can t slide off the bar Seat mount straps (and bike side panel protectors) for ease of mounting Storm/rain cover included Clip on shoulder carry strap 3M Scotchlite reflective for added night safety 300H X 550W X 360L (mm) Before Expanding 380H (mm) Expanded