After thinking about this one, I have more of an answer. I live in Oregon when I'm not in Bosnia. I have a large "EMT" style tackle box in my trunk that I keep all my first aid stuff in. I have put this kit to a lot of use. It keeps all my gear organized and readily portable. I have never had problems with the heat. Then again, I live in Oregon and not Texas.<br><br>I don't suggest you use a kit like that for just first aid supplies unless you have the training to use/need that much stuff. However you could keep some of your gear in it, just in case you need to bail. That and a hard plastic case probably retains a lower temp longer than a fabric one. <br><br>Also all the little segregated compartments means even if your stuff melts down, it won't "contaminate"/dirty up all your other gear. <br><br>Just a thought<br><br><br>