MiiR 360 Traveler, Stainless Steel Double-Wall Vacuum Insulated Tumbler - Leakproof 360 Lid for Easy Sipping on the Go; Perfect for Hot & Cold Drinks

I can put my tea a coffee in it and shake it and nothing ever leaks and I can carry it sideways and it keeps everything hot and it's easy to drink out of.

Revised - I figured out the flow/no flow thing by reading another person's review (thanks for that), so I went back to loving it. Today, when getting my stuff in the car to go to work (briefcase, purse, lunch, coffee thing, etc) I put it on the roof of the car, got my stuff in order and drove away. Guess what happened next.Yeah, that. At the first stop sign it slid off the roof of the car and I watched it tumble in front of the windshield, bang on the street surface and roll down the street. It's not even light out yet, and I'm running down the street after it. The little disk at the top broke off and since it was dark I was not able to find it. The reason I changed my review to 5 stars was that when I got to the office, I could do NOTHING until I got on Amazon and ordered a replacement. No consideration required. Now that's love. But just to be clear, the top broke because it hit the pavement, not because it's cheap. Totally my fault.Old review:I used this for basic office coffee commuting every day. I loved it! The size was perfect, the shape was pretty, It was perfect, until it wasn't. The way it closes is kind of unique, but it wore out after a little more than 2 months. I guess it's beyond the return window, so yeah...I actually liked it enough to buy it again knowing that it will only last 9 weeks, which is bonkers, but if you're a rational person you may want to keep looking.

Good purchase , size is perfect

I love this style. It's my favorite kind of cup. It keeps the coffee hot. I have another one of this brand and a taller size that I like a lot. However, this particular one after a few months of ownership I was having trouble closing properly. The push down doesn't work so well anymore.

What looks like a great idea with a pop up/press down lid is actually the worst. The lid doesn't actually pop up, so there is no way to tell if the lid is open or closed.

Very nice quality as far as material and construction, and does a great job of maintaining beverage temperature for plenty long enough. The only two issues for me are that it can be hard to discern whether the drinking lid is open or closed just from looking at it, so you have to either make sure to pay attention and remember or try to drink out of it in order to know and make sure it is closed, and then that the fact that the entire ring around the lid opens and you can drink from anywhere around it; it’s a double edged sword since it is both convenient but also increases the risk of possible leaking, particularly when full. Overall it’s a very nice, quality travel mug that does keep beverages hot and cold quite well, but next time I would likely opt to try a different model and/or brand with a different one-handed operation model due to the couple of (in my opinion) drawbacks.

I travel on the train/uber to work and this is the perfect size to carry in hand and in my backpack. Hard to tell if I locked the lid without trying to take a sip first but no big deal. I also like that you twist the lid on vs the typical rubber seal so I know it won't leak. Happy with my purchase!

Awesome mug and I love the open and close mechanism. If I had to list a single fault it would be that it the lid is a little hard to clean. Would take off half a star for that but since I can't do half Stars, it's a full star... Use everyday