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I grabbed this as a backup lid so I could keep one at work and one at home, and it fits perfectly with a tight seal that doesn't leak when I toss the tumbler in my bag. The lid snaps on and off smoothly, which is exactly what I needed.

I lost my original lid during a road trip and this replacement fits just like the factory one did. The seal is tight enough that I can toss it in my bag without any leaks.

Noticed the lid clicks on securely without needing to line up any arrows, so swapping it out takes two seconds flat. Nice to have a backup ready in the drawer for when the original inevitably goes missing.