Thermos Nissan 18-Ounce Stainless-Steel Insulated Travel Tumbler

Very Good product. Sturdy and keeps beverages warm or cold for many hours. Only drawbacks are: When it is too full, and you tip to take a drink, be careful because their is no vent and the hot drink will not come out immediately because the air cannot get in to let the beverage flow out slowly. I've gotten burned a couple of times.

Secondly, it is NOT spill proof. It leaks if turned on its side. Still for what I needed, a fairly spill proof driving container, it is very good.

This tumbler will keep a drink hot for at least 2-hours without any pre-conditioning. Also keeps drinks cold this long too even when left in a hot car. I now have this 18-ounce for my home and a 14-ounce for the office that I use only for coffee. Any problems with the flip top is offset by the fabulous insulation of these tumblers. Great buy! I have recommended this to several at work and they a buying too!

We really like our new tumblers.The thermos part is terrific. When we started with cold liquid and ice in the morning, we drank the liquid and still had ice at the end of the day. It is not completely leak proof, but still fits and works well in a bicycle bottle holder. It easily holds a 12 oz.-14oz. bottle of pop or whatever plus ice.

Over the past two years I now have purchased four of these. They last and last. Expensive but worth the money. They hold up well and clean easily in the dishwasher. It keeps coffee hot for many hours. I use it in the car and take it into church with me as well. Great for the office or car travel! I highly-highly recommend this item.

I bought this because my son borrowed my old Thermos/Nissan mug that I've had for almost 20 years and left it somewhere. I loved my old mug, it kept my coffee hot for hours. Then I ordered another brand mug, that claimed it did the same and it was a 20oz. mug, well it did hold 20oz. but it did not keep the contents hot at all. One way to tell if you have a good insulated mug is if the outside stays cool to the touch, the brand X would get hot which meant the contents were getting cooler. I love my new mug, I recommend it to anyone looking for a good, well made mug that works as advertised. The only thing better would be if it held 20 oz.