UltraMax fabric for maximum UV protection Mounts to luggage rack, sissy bar or seat using quick release and self-fastening straps 2 outer pockets for quick access items including lockable zippers Rigid construction an solid base panel prevents sagging Reflective piping enhances visibility; waterproof rain cover included Main compartment: 20 Liters. 15” (38.1cm) L x 9” (22.9cm) W x 9” (22.9cm) H