Simple Modern Tumbler Flip Lid | Reusable Replacement ONLY Fits Simple Modern | Stainless Steel Trek Travel Coffee Mug Water Bottle | Trek Collection | Midnight Black

Fit great, doesn't leak. I use it almost everyday.

Fits perfectly. They are thick and leaking proof when closed.

I bought the seasonal bats tumbler and the straw didn’t work. This was a pretty good replacement. You just have to be careful once you get halfway down. The water often rushes.

Fit is great, doesn’t leak, and I don’t get stabbed in the eyeball when trying to take a drink!

The biggest issue with my SM bottles was I could only use it with could drinks but this list let's me switch it up to hit drinks.

The simply modern cups are awesome, however when driving the straw rattles the cup the whole time so it gets quite annoying. I purchased this to stop that from happening and it works to perfection. Great product for only $7.

Not fit slm container I own.

These replace the lid with the stray and make drinking a hot drink very convenient. Drinking hot drinks through a straw is awkward. This lid works great and can be positioned for right-handed and left-handed people. The tab that locks down to make it spill proof does take a little effort to close or open the hole for drinking but that does make it leak proof.