What supplies are those? Anything that could help you in a bad situation. That thing at the back of your car is called a trunk. It should have enough of room in there to at least hold a milk crate. And in that milk crate you could store a lot of small things that could save your life. At Survival Frog, they have a lot of those small things that you may need. For example, the Life Straw! If you were stranded somewhere near a river, stream or even a dirty puddle, you will still have plenty of drinking water with the Life Straw. So, check out the Life Straw and all those other small things for your milk crate.