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 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.

This 2 pack of coffee tumblers are a great addition to any household. I love that the lids are interchangeable to give an offset look or make them match completely. They are completely dishwasher safe which makes cleaning easy. The slider and silicon rings on the lid are removable so you can really deep clean and not have to worry about mold. Fits in most any cupholder. Absolutely love these!

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 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.

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 tumblers are amazing! The lids are fantastic and have a great suction to them so they're pretty leak proof which makes it easy to carry around on the go and to work! Great insulation and keeps my cold brew chill! I don't care for the mismatch colored lids on them but otherwise they're fantastic and a great find! I haven't tested out hot beverages in it yet but I can tell it'd be pretty good at keeping it warm based on how cool it keeps my cold brew.

I absolutely love the earthy colors of these tumblers, and they are in a set of 2. I prefer to use one for my ice water and one for my hot coffee. The ice water remains chilled and with ice for 24 hours at a time, unless I drink it sooner. My coffee remains hot and enjoyable for several hours. It is easily washed on the top rack of my dishwasher. So I can use them daily. They are easy to clean and put back together. The size is perfect to fit in my hand and not be bulky like a lot of other tumblers. My Tumbler set is my go to for every day drinks now.

There are so many drink tumblers and slippers out there. What is different with these 20oz tumblers from Member's Mark? Magnets. What does that do? It changes the structure of the lid, making for less complicated components and as a result, an easier cleaning the tumbler. Oh, and they are dishwasher safe! And there are multiple color combos! The top part slots in a groove on top and the lower part is a minor V-shape and is aligned between two tabbed holes, with the strong magnets keeping them together through the lid, either open or closed. That's it; there's nothing else, no additional holes or plastic on plastic where grime can build up. Slide the top part open and there's a satisfying click as the lower portion opens up in tandem. Same in reverse. The aperture is not overly large, so this isn't a big gulpers best friend, and you cannot use a straw, but this is marketed primarily as a coffee or hot drink tumbler, so less straw, more tilt and sip. The stainless steel lining is a must and keeps hot hot and cold reasonable cold. The padded rubber base is a nice touch. And again, they are dishwasher safe. I recommend these Member's Mark 20oz magnetic coffee tumblers for those who want a set of 20oz sized colorful tumblers for hot or iced drinks that are easy to clean and easy to use.