Tail Bag, Trail Bag & Claw Bags are a particular luggage built for bikers without pillion. Advantage of this bag is, tail bags are comparatively more spacious than a saddle bag. It is because everything is under a single bag. Another positive point is a Tail Bag doesn't get dirty like a Saddle bag, because it doesn't stay under close proximity of tyre. Last but not the least, a biker can rest his back on tail bag during a ride.