This bag mounts directly to your luggage rack, sissy bar, or seat and is large enough to hold everything you may need for your daily rides.; Industry leading UltraMax fabric for maximum UV-protection Mounts directly to the luggage rack, sissy bar or seat using quick-release and self-fastening straps 2 outer pockets Includes lockable zippers Rigid construction and solid base panel prevents sagging Reflective piping enhances visibility Waterproof rain cover included Lifetime manufacturer warranty 20 liter capacity Dimensions: 15" L x 9" W x 9" H