This is the Lassig Car Backseat Organizer. It's a long name for the cutest car organizer I have seen. I gave ours to my granddaughter because she's a lot younger than my son, and her parents have a real need to keep things close at hand. I want to purchase one for my son though, because a). he likes to be organized b). he enjoys taking things with him in the car, especially if we're taking a long road trip and c). it has a lot of different kinds of pockets for the various things you might need to bring along while you are in the car.
The straps on it easily secure to the back of any car seat.
There are flap pockets that close with Velcro.
There are slip-in pockets that don't have a closure.
There are zip pockets too.
If you want one for yourself, you can purchase it on Amazon