The back inside isn't flat, it has deep ridges (where the pully handles are) which means things don't fit properly in there. It would have been better if they'd just reduced the depth and had a flat panel. Maybe they did this to advertise it as deeper than it really is.

Please note tha the Lowepro Pro Roller x200 has been upgraded to the Lowepro Pro Roller x200 AW. At the recent PhotoPlus Expo in New York City, I as usual spent a lot of time in the Lowepro booth checking out (drooling over) their always-excellent gear.