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

For starters, Miir tumblers keep things hotter, for longer, than anything I have ever tried and it's not really even close. Secondly, although some people complain about the top, I find it to be the best I've ever had. I use it for hot coffee and your really don't "drink" hot coffee, but rather you "sip" it. This is perfect for sipping. Also, some people have complained about not being able to tell if the top is open or closed, however, I have found that it makes a slightly different sound when opening than closing, so I haven't had a problem in that regard by simply listening. Lastly, some people have complained about the longevity of the top. I can't speak to that yet, so we shall see. I am hoping it lasts, because that last factor will allow this tumbler to be, in my opinion, the best on the market if you love hot coffee!

I've owned two of the 12oz Traveler 360 thermos' and they are great for hitting the road with a cup of coffee. The seal is flawless, the size is perfect for a cup of coffee and the 360 lid means you don't have to take your eyes off the road to be sure the lid opening is in the right position. I had three drawbacks with the first one: hard to tell if the lid was opened or closed; the lid can't be disassembled for cleaning; and there's a fairly loud click when pushing the lid closed. The first issue was resolved with a marker in the newest version. For the second, I rinse in hot water daily and run the lid through the dishwaher once a week and it seems to stay clean. I've learned to live with the third. All in all, it's the best option available (and I've tried plenty!).

I love how this mug feels in the hand and it is the perfect size. However, I can't tell whether the lid is open or closed. I've spilled coffee in my bag because I didn't realize it was open. In order to tell if it is open before putting down, I need to sip from it or pour. Unfortunately not ideal for commuting if you are taking it in and out of a bag often, walking from place to place, etc. Too many opportunities to make a mistake about it being open. A visual indication of whether the lid is open or closed would make this mug ideal.

Lid stopper has weak point at the stem. This broke on me twice, first time while washing in the sink, less than 12" drop and the stopper broke off. Too bad, I really like the size of this slim tumbler vs other brands, but will likely switch because of this. I can't keep buying new lids.

Keeps hot beverages hot and cold beverages cold. This has quickly become my favorite tumbler for my morning coffee.

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.

It’s very well made and a pleasure to drink from, and maintains both cold and hot temperatures for a long time. There is one design flaw that I can’t forgive: when the lid is closed, there’s still a visible gap between the inner part, which can be depressed to open and close the lid, and the outer rim. This means it’s impossible to tell at a glance if your travel mug is open or closed. The Simple Modern travel mug is essentially the same design, but you can see when it’s closed because the inner part of the lid is flush with the rest of the lid.

Best travel cup I've ever purchased

Love it

El termo funciona bien y está lindo. Sin embargo, el tema del envío muy mal, sí llegó a tiempo pero mi paquete llegó abierto. Creo que no está siendo muy buena idea comprar así...

Great product, super convenient I would have liked the lid to be made from metal also, the plastic used seems a bit cheap and especially if using hot liquids, I'd prefer a non-plastic option

飲み口の部分が分解清掃不可のため衛生面で不安がある。 説明書に煮沸・漂白はするなと書いてある。 開閉部が狭く普通のスポンジなどでは内部の洗浄は困難。 いや、無理である。 コーヒーやジュース類などで常用することは無理か？ 水専用のボトルと考えたほうがよさそうだ。 残念である。

Great product but hard to clean