I was naïve and used to ride around hunched over with a backpack. Backpacks are large and create drag, while this tail bag does quite the opposite and suits my needs and more.This is a great priced bag that is relatively sturdy and carries all my belongings. It can strap down well to my CBR even with an aftermarket seat cover. It perfectly sits on my MT07 / FZ07 rear passenger pillion. It can compact really flat to be aerodynamic an can expand big enough for my Shoei X14, size Medium. (But not enough room for much else if the helmet is inside.) The minute or two it takes to clip the bag in is worth it to save my back for longer rides, and lets me carry even more with no excuse since its all on the bike. I leave the backpack straps on to make things even quicker and I love the extra accessories to make commuting in all types of riding weather doable.The only real downside is that the straps used to hold it on to the bike get slightly loose if you are carrying heavier things making me have to readjust it every ride. Also that if you want to ride without the bag leaving the clips, the clips just dangle around and it would've been nice if they clipped into each other to make it neater. Nonetheless, it is an excellent and great priced tail bag.