A water bottle that keeps your drink hot or cold for HOURS. I left water out overnight and it was still ice cold the next day. Hot drinks are kept hot even without the lid on which can make it difficult to drink at times but it does the job. The lid is plastic so it can easily be scratched up but two lids make this perfect for switching from hot to cold liquids. It only leaks if you’re not closing the lid correctly so be sure to double check that. A stainless steel straw would be nice in the future since the straws are made of plastic. People who infuse water with acidic fruits should be careful when combining fruit with the plastic straw.