I’ve been using this pouch for a few months now, and it has handled itself beautifully. The link takes you to its sales page on Amazon, but I found it for much less at Marshall’s. It was definitely under $10, and I think it was even $7.99, but I don’t recall exactly.

It folds in thirds for easy packing whether you’re traveling or just carrying it in your laptop bag. Unfolded it has three pockets. Two are zippered, the other folds over itself. As you can see, I use it for my external hard drive, phone and ear buds chargers, SD cards, SD card reader, USB-C adapters, and it can be used for much more.

I highly recommend this. 10/10 would buy again.