**Funkrin 18oz Insulated Stainless Steel Coffee Mug with Lid & Straw - Ceramic Lined Travel Tumbler, Reusable Thermos Cup for Hot & Cold Drinks - Perfect for Office, School, Camping, Hiking & Outdoor Activities**

It keeps cold much longer than a regular cup. It's easy to clean and I had no issues with it. I like the straw it comes with tooThis tumbler keeps my coffee nice and hot, and I'm surprised at how long the ice remains ice. I bought it because it is ceramic lined, but it is still like drinking out of a stainless steel. I wish there were a way to have a totally ceramic rim so that it feels like ceramic rather than stainless steel when you drink. But then the lid could not screw on, and I do like the security of that. The straw is nice for cold drinks. The color I wanted was white, only available with little kitties on it. I've adjusted, the kitties are cute. To me, the price was high. But I do like it, am enjoying using it.I like the look and feel of this tumbler and I specifically bought this one because of the size and because the lid was one piece and not two pieces that come unglued or come apart. Only problem is that you have to be very careful when putting the lid on as it constantly wants to cross thread. Not really sure why it does this as the threads are not damaged, and I think it is a design flaw. Nice tumbler, just be careful putting the lid on.Update: I've had this for less than a month. I was loving it until today. I've been only hand washing this the entire time, but today I went to wash it and the exterior coating near the bottom started flaking off. It's not a lot, but it's starting already, and that is concerning. If the exterior is flaking already, what is happening to the ceramic coating inside where I'm drinking.Pros: Easy to grip. easily fits car cupholders, tight lid (not spill proof since it has a straw opening).Full 24oz capacity, makes this a good balance between size and volumeKeeps my drinks cold for a long time, even in a warm car.The best feature is the ceramic coating. For anyone who can taste the metal in most other insulated cups, this is a must have.Con: My ONLY issue with this is it's a little top heavy. To get the 24oz they went taller, and the base is a bit too narrow, so this is a bit top heavy. If the base was maybe 1/8" bigger (no more or it wouldn't fit in the cup holder) or had they flared the top half to make that bigger it would have worked a little better. Just need to be careful where you sit this down.It does keep water cold and I like the size but I wouldn’t buy this bottle again. I picked this water bottle specifically because it has a top that covers the straw and I work in a hospital so I found that great. HOWEVER, I had to take the rubber bit off of the straw because it hindered it from working. After a few weeks the straw for some reason quit working all together. My husband widened the air release hole and it worked again for a little while but has since quit working again - I think I got about a months use out of this lid. The lid with the spout leaks TERRIBLY and constantly. It’s also a very tiny pour spout and very awkward to drink out of. The only lid that’s okay is the larger one. It hasn’t started leaking yet but it’s definitely more annoying to take on and off. This lid has chipped the color off of the bottle but that’s my only complaint so far. It’s a little frustrating that I purchased this bottle not expecting to ever use this lid, but it’s the only one that works now. Overall, it’s a good size and keeps the water cold but I wouldn’t buy it again. I’d spend a little more to get a bottle with a lid with a straw that works well.great hot/cold retention - but first one I got the metal cover on the lid separated from the interior plastic piece - returned and same thing happened to second one. Not sure if will try glue or return. bummerPros: this mug is big and leak proofCons: heavy, dents easily if you drop it, and the paint chipped after one month (I only ever handwash it)Overall, wouldn't recommendThis cup is solid and well-made, and the ceramic lining means your tea, or your cold drink, don't take on that metallic flavor. The lid fits well and prevents most spills when it's closed properly. It keeps my drink hot or cold for a couple of hours, and the base is narrow enough to fit in the cup holder on my car. It holds a lot, but it's kind of tall. For use in the car, you might prefer their 16oz version.Liked the idea of the ceramic lining but it’s pointless because I noticed it starting to chip/peel inside the flask after about 2 weeks. I’ve ingested some of the ceramic unknowingly. This is very disappointing and unsafe.Everything looks awesome except one of the straws are broken unfortunately! Luckily it comes with two