The Cycle Guys Fastpack Tail Bag CG2-08 A tail bag that fits over your rear seat When expanded it provides lots of useful storage space, about the size of a tankbag When collapsed and zipped up, FastPack turns into a custom, padded seat cover with a carbon-fiber look FastPack is attached or removed in minutes, but never has to be removed from your bike When not needed, simply zip it up and it becomes a stylish padded seat cover