Features UltraMax™ fabric for maximum UV protection. Upper and lower storage compartments with lockable zippers. Rigid construction and solid base panel prevents sagging. Front pocket folds down to provide easy access to main compartment. 3" expansion section. 3 outer pockets. Carry handle for transport off the bike. Reflective piping enhances visibility. Waterproof rain cover included. Can mount directly to seat with optional NR-USA (Under Seat Attachment). Main compartment dimensions: 13" L x 8.5" W x 11.5" H. 20 L capacity expands to 24 L. Top compartment dimensions: 13" L x 8.5" W x 4.5" H. 8 L capacity.