I use this bag for my electronics battery banks etc…
Lays nice and flat not too big easily stashes away in your pack side pocket or in your fanny pack which is where I keep mine on town days
I was sent this bag to test in exchange for a review, and I really like it. I wasn't entirely sure what the intended purpose is, but what I've been using it for, since it's flat, is to put my ereader, phone and earbuds in (with cables or charging brick thing as needed) while traveling to and from work by train. It's really awesome for me because I tend to put these items in the bag while cycling to the train station, then swap out the things I use on the train for my bike lights and cameras to start charging them as needed, and it keeps them all in one spot. The bag has held up well to use multiple times a week, and is a really nice size to slip into a backpack either vertically like a book, or horizontally like a plate, if that makes sense.