I was finally able to use this for my son’s field trip and it’s perfect. It kept my coffee nice and warm and didn’t leak. My son even dropped it and it didn’t leak. It’s easy to open and close. It’s dishwasher safe and easy to clean. It also make for a great gift for any coffee or tea drinker. It’s perfect for any hot or cold drink to travel in. This is going to be great for our road trip coming up.