If you're tired of spills, leaks, and lukewarm drinks, let us introduce you to the game-changer you never knew you needed: ...

Strangely, the black bottle I also tested didn’t leak. I left it for a full hour upside down in my bag and there wasn’t any leakage upon removal. So, is it a design flaw or a manufacturing glitch?

When closed, a switch at the base of the lid locks it shut so you can confidently toss it in your bag ... Best spill-proof: Stanley Classic Trigger Action Travel Mug Even the most leak-proof ...