@luckymeoky_tumbler: I was literally about to throw mine out because it kept leaking everywhere. My coworker saw me cleaning up yet another spill and just slid these lids across the desk at me without saying a word. Screwed it on. Threw my cup in my bag upside down on purpose. Pulled it out at lunch. Bone dry. I've had this lid for two weeks and I haven't thought about leaks once. Not once. Fix the lid. You're welcome." #TumblerLid #LeakProof #TumblerHacks #40OzTumbler #TikTokMadeMeBuyIt