I use the bag for Nikon P7000; had long sought, remained widely read and measured and am despite controversial comments in this product depend. Really perfect fit for the camera; I use additionally protect a lens cap to the puny slats of the lens shutter and the cover contributes to the camera something to. For thinner cameras this bag is no longer ideal - would no longer sit so sick; slightly thicker would then fit fairly tightly, but still portable. Processing I find ok. As Gürtelhalter me an additional pusher would possibly for Velcro perhaps a bit safer, but so far no problem. Some "violence" tried it - holds tight to the belt with Velcro. The small zippered compartment is sufficient for memory card and extra battery.
As noted by others: 100% dust or sand protection is given in any way, as the flap closes maximum just flush with the side panels. For me is not a problem. I just wanted to have a favorable, almost exactly matching shock protection and this function satisfies the pocket.