Just got this bag that I ordered a few weeks ago from a favorite small mfgr. Randi Jo mainly makes cycling caps -- the absolute best cycling caps, IMO, but also some small bike bags, and now a waistpack/sling.
Construction on this is excellent, very beefy and also classy, with some neat design elements like the center gusset on the front pocket to give it some expandability. It has some padding in the bottom to give it structure and to make it camera-friendly. There are no dividers, though.
Default fit is for skinny folks (as is true of so many bike brands), but you can request a different size.