Single Pocket Walker Accessory Bag - w12-1/2" x 16". Here's another new and different take on your standard walker bag! Like our WB600GSM, this bag is made of 100 GSM material, and also lies over the bar and attaches underneath with a hook and loop strip. The difference is that this organizer features 1 large, deep pocket instead of 2. And, you can face it whichever way is comfortable for you. This convenient accessory is designed to carry more than just a bit of cash and identification. It adds some serious utility to your walker.