12oz 2pk Stacking Short Tumbler with Lid - Room Essentials™

Very cute tumblers that I bought to keep in my camping cook set. Unfortunately, the lids do not work well. There is no vent, which makes sipping out of the small opening very difficult. The surface of the lid is also very shallow and completely flat, so you have to smush your nose up on the lid to drink from it. Lastly, I tried swapping out the lids with ones I have from a very similar tumbler brand, but the diameter on these tumblers is just slightly different (smaller) enough to make using other brands' lids impossible, even though most other brands use an interchangeable size. The cups themselves are ok for the inexpensive price, but with an essentially non-functional lid, I do not recommend them, and would never pay more than $10 for the set.

Really excited to see these in-store, felt like they would be a perfect dupe for a much more expensive set. However, the design (as mentioned by others) makes them unusable with the provided lids. I considered heating up a needle or other metal implement and creating a vent but was worried about it not working, so I returned them instead.

Love the cup. Perfect size for a cup of coffee. Love the colors and how good it fits in my cup holder. I rate this cup a 4.9. My reason is the lid. It seals great, but I just have a little hard time drinking because there's no vent hole.

These are really cute but there is no vent hole, so drinking out of them is a little trickier

There’s no vent hole, so it’s really hard to drink.