Klean Kanteen - 16oz TKCanister:

These versatile food canisters keep meals and snacks hot or chilled for hours using our high performing Climate Lock™ vacuum insulation and TK Closure™ thermal technology. Our wide-mouth design makes filling and eating from TKCanisters easier than ever. Screw off the lid and boom, you’ve got a bowl that is both functional and stylish. When you’re done, the lid locks into place with just a quick quarter turn.