With the Nissan 16 oz. Leak Proof Backpack Bottle you can take with you hot or cold beverages that will stay that temperature for about eight hours. I take this bottle to work with me and just about everywhere I go. I have experienced no leaks and it is easy to use. It is also easy to use while driving. I can open and close the lid while driving with no distractions off the road. “I am considering buying a couple more just in case I lose this one. I’m famous for losing things and this is one thing I do not want to be without.”