That's cool.. Has me tempted.. But I throw all kinds ofstuff under my seat.. like allen wrench set, air guage, Plexus, microfibre, GPS & assorted plugs,mesh pants (when in use) seat cover, and so on.. My top box becomes the place for my helmet (E-55), and jacket.. I commute,so typically shed all ATGATT stuff in the parkinglot & store it.. but that bag is very cool & tempting..like i said.. Underseat on the 650 is great as it seemstobe very dry.. My prior bike underseat leaked like crazy, so I use the under seat like a new toy..