Yes it is the commuter lite. So the way your supposed to strap it according to directions is the straps actually sit under the seat. To remove the bag just unbuckle the straps and bag comes off. To remove the seat just remove the seat and bag comes with it as it is actually attached to the seat itself. I have found it difficult to strap the way it is supposed to be because the straps are quite long and our under seat area is quite small lol. What I do is attach the front one the proper way under the seat. The rear one I use the straps around and under the tail itself. I have a vagabond eliminator so the straps sit against the hardware for that quite nicely. If you want to access under the seat you have to remove this back one but if I am riding with the bag no need to get under seat.