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.

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!

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.

I highly recommend having these coffee tumblers, not knot because of their vibrant colors, but because they are big ( holds about a cup and a half! ) , keep coffee hot, have a secure plastic lid that prevents splashes (NO spilling!) and cup- holder friendly. They have like a plastic layer that makes it soft and cool to the touch. It also has a rubber grip to prevent slips. But best of all, it is dishwasher safe!!!

This 2 pk tumbler is an excellent product. It keeps my and my daughter's coffee hot while we both are in office and they fit my car cup . It is easy to clean no spills and I personally feel a very thought out product. Go ahead and get one and you won't regret.

Very nicely made. Keeps liquids hot for hours. It works best to put hot water in first and let it sit for a couple of minutes. Pour the water out and fill up with your hot drink of choice. It has nice texture on the outside of the mug. It is also easy to clean(dishwasher safe)

I really liked this tumbler for its magnetic lid. I love that you can take it off very easily and wash unlike other tumblers. It kept my coffee hot at least for four hours and it's leak proof!! It fit just fine in my cars cup holder. I would love for a smaller model, maybe 12 ounces, but overall I really liked the product.

These coffee tumblers are now must for every morning. We separated according to beautiful colors between me and my other half. We take around 500mL every morning and lasts whole day without any spills. The rubber gasket is ultra high strength and packing is great. Maintaining it is quite simple and due to highly smooth interior nothing clings or sticks. The magnetic lock mechanism provides safety against accidental spills.

5 out of 5 stars for these coffee mugs! They keep your coffee hot for a long time and keep your cold drinks cold for a while, excellent performance in my opinion! Hold 20 ounces of hot or cold beverages, and are perfect size and weight for a good quality coffee mug. The sliding top is really nice and you can take it apart to clean, then assemble it back together no problem at all! Great product, amd it has a non slip rubber bottom!!

These 20 oz coffee tumblers are perfect! The set I have has one blue and one green and they have lids with slide tops. They are top rack dishwasher safe, which is a huge plus for me because it seems like all of my coffee tumblers are hand wash only. They are light enough to be able to pick up easily but also have a decent weight to them. They're easy to hold and have not leaked when I use them. They keep my coffee hot for quite a while as well. I would definitely recommend these!