Vacuum seal does not leak! These are my goto coffee and water tumblers. I have Parkinson's and it makes me Sir Drops a Lot. I love that the seals stay sealed. Both cups are full of water. One cup upright and the other upside down. No leaks onto the counter.

These adorable 20 ounce travel coffee tumblers are good quality. I love that they come in a variety of colors. They are well made, stainless steel, top rack dishwasher safe, and have a max fill line printed inside so you don't over fill your cup. I also like that the closer tab on the top is magnetic and easily comes off, as does the the tab on the inside cover, for a more thorough cleaning. I think they would be perfect for hot or cold coffee.

I absolutely love these travel cups! The black and white colors were ideal for my preferences. The vacuum seal keeps my drinks hot all day and the screw top makes the cups completely spill proof when the lid is closed. They hold 20oz of liquid and are dishwasher safe. The size is perfect to fit right in my hand and they fit in every cup holder I've tried.

We picked up this 2 pk of MM 20oz Coffee Tumblers at Sam's Club. The stainless steel construction is sturdy and well made. The double walled design works great. Coffee stays hot and ice lasts for hours. The magnetic slide lid is a very special feature. It opens and closes very smoothly. The base fits in a standard cup holder in your vehicle. The exterior stays dry and cool to the touch, so no worries with holding. Cleanup is easy since the lid screws on and off and the slider pops off for easy cleaning. Solid value and Definitely recommended.

The members mark coffee tumblers are very nice. I fill it up every morning on my way to work, and when I finish it a couple hours later, it is still nice and warm. I have not had it leak yet, and it didn't spill when I knocked it over. They are very easy to clean. My wife wants to get more colors now because she loves using them too.

These tumblers do not leak even when turned completely on their side, even when turned completely upside down! The outside of the tumblers do not get hot or warm at all and stay comfortable to hold while the inside stays hot. The lid screws on and has a magnetic sliding tab that closes to keep the area that you drink from closed when not using. This magnetic sliding tab creates a vacuum like seal and really keeps your drink hot, you can hear it when you open the slide letting the air in. The colors are super cute and stand out from others. The shape allows you to grip the tumbler securely. The lid comes apart so you can thoroughly clean it so no hidden or hard to reach mold. To top it off this tumbler keeps my drinks hot all day.

I am very surprised at the quality of these coffee tumblers. There are much better than I expected. A great value for the money. They are a nice weight and they feel good in your hand they work very well. I'm very happy with these and would recommend them to anyone.

Very convenient. Keeps my drinks at perfect temperature. It last long at its desired temp. Light weight and easy to hold. The design is sleek and beautiful. They come in gorgeous colors. Great value. Fits perfectly in my car and strollers. Easy to clean and care for. They hold 20oz.

These Member's Mark 20 oz. coffee tumblers are great quality! They hold a good amount of liquid, and they keep beverages hot or cold for hours. The sliding tab design is smooth and very easy to open or close as needed. Everything is dishwasher safe, which makes cleaning quick and simple. I like the weight they have, they feel sturdy but not too heavy or bulky. The solid color design is simple and clean, which I appreciate. I definitely recommend them, whether you're looking for something to hold your morning coffee or keep your water cold through the day.

Love the blue and green colors in the Members Mark 2 pack tumbler set. The 20 Oz size is perfect, the lid screws on tight and the slide lock works well, easy to clean too. Only small downside is the bottom slip pad can trap a little water but it dries fine if you flip it over. Still great set..