Saddlemen Sport Tunnel Bag The aerodynamic shape and rider-convenient features make stashing your gear easy and does it with leading edge style. The tunnel bag attaches to almost any rear seat or pillion up to 9-inches wide with an included mounting system, and additional straps for extra security. Once secured to the rear seat area, the bag can be removed and re-attached to the bike within seconds using a series of cam locks on the outside of the bag. Features Includes easy-to-use, universal, rear seat mounting system that easily attaches to most rear seats and pillion pads Rugged 1200-denier SaddleTuff construction for long life Internal pockets and three big exterior pockets allow easy access when on the go Two of the exterior pockets expand an additional 2 for extra storage Water-resistant construction with integrated rain cover Exterior D-rings for attaching other items like jackets or other luggage Concealed D-rings, easy to use, but never in danger of scratching your bikes finish Tech organizer for smart phones, digital cameras, or MP3 players Adjustable main compartment clamshell straps can be opened a full 180 degrees Comfortable carry handle allows the bag to be used as a suitcase when off the bike Semi-rigid construction holds shape and looks great even when empty Standard Tunnel Bag Dimensions: 9 wide in front - tapers down to 6 wide in the rear x 3 deep x 15 long. Exterior dimensions:15L x 17.5 W x 11 H measures 1450 cubic inches Wide Tunnel Bag Dimensions: 12 wide in front - tapers down to 9 wide in the rear x 3 deep x 15 long Exterior dimensions: 15 L x 21 W x 11 H