This car trash bag has adjustable straps, and can be placed not only behind a chair but also behind the center console. This means that the customization location within the car can suit your needs! In addition, you can also nix using this for trash and instead use it to store food and drinks for a long trip.
The bag comes with an attachable lid to keep things cold or keep nasty smells in without going throughout the whole car.
When not in use, you can fold the bag up and store it for a different car, use, or location. The versatility of the product is perfect for anyone who wants a bag usable throughout the car.
Check out the bag on Amazon here, and get one for yourself! It ships with Prime!