Industry leading UltraMax® fabric for maximum UV protection. - Mounts to luggage rack, sissy bar or seat using quick release and self-fastening straps - Upper and lower storage compartments with lockable zippers - Rigid construction and solid base panel prevents sagging - Front panel folds down to provide easy access to main compartment - Additional 3” expansion section and 2 generous outer pockets - Carry handle for transport off the bike - Reflective piping enhances visibility - Waterproof rain cover included - Can mount directly to seat with optional 587260 (Under Seat Attachment) - Main compartment: 13" (33cm) long x 8.5" (22cm) wide x 11.5" (29cm) high. Capacity 20 liter, expanded 24 liter - Top compartment: 13" (33cm) long x 8.5" (22cm) wide x 4.5" (11cm) high. Capacity 8 liter