As a Chicago commuter,  always looking for things to make the process easier.  I don't always have both hands free. I prefer using a backpack purse. Previously, I had used a product that Velcro Road onto the strap of my backpack  creating a pouch I could reach easily where I could keep my bus card and my phone. The two things you want to have handy right?  The pouch lasted a couple years, but eventually after heavy use, the Velcro straps frayed and broke and that was unusable. So I started looking for something else. And I came across this little gem  after one or Q tries.  I don't care out of giant tablet size phone, so it fits very easily inside of the pouch. And I can carry different cards in the zipper pouches on the side. I can also carry keys and/or an extra waste pick up bag in the pouch. Its very handy and holds a lot more than you might think.  I even got my parents these as gifts for Christmas for when they travel.