To the rest of the world, it's totally a fanny pack.
I was browsing items on Etsy, as one does, and found Sheekoo's store. There are a great deal of cool items there, including journals, which are a particular weakness of mine. However, there is also a lovely variety of dog treat training pouches.
There is a french hinge that keeps the treat compartment open, or closed, that also fits Elka's 20 foot leash. There is a tiny zipper pouch in the back, for keys and clicker and suchlike, and a small zipper pouch in the front, for whatever else you'd like to bring on a walk. There's also a place to stick poop bags.
The bag came with a few complimentary bags, an individually wrapped dog treat, and also a picture of Sheekoo's dog with a handwritten thank you note! Elka was happy to snarf the treat, so it was better than a Milkbone, as the princess will not consume those if she feels there's the possibility of other options.
There's a certain point that a dog owner reaches, I feel. I had a shoulder bag that I'd been using that held the items I needed, and I tend to walk Elka wearing cargo shorts. Men's cargo shorts, in fact. A side question for my female readers: have you noticed how women's cargo shorts or pants don't have pockets worth a damn? I still need those pockets for cell phone and camera, and possibly a rope toy, but other than that? A bag is great.
And now, I've transitioned to the fanny pack. Treat training pouch. I made the step to using backup when walking her, which I hadn't before. Nobody has pointed and laughed when I've worn it, so I guess it's all right. And Elka doesn't mind.