Leakproof Travel Mug by Interflask – Insulated Premium Vacuum Flask that Keeps Your Coffee Hot for Hours. Dishwasher Safe up to 50°C (16 oz, Stainless Steel)

This travel mug definitely works as advertised. Completely leak proof when the lid is closed. Based on how warm it was I would bet it would have still been warm at 8+ hours, but I finished it 6 1/2 hours after it was filled. In all honesty it almost kept it too hot. The whole time the outside of the mug was never even warm so it's very well insulated. It was advertised as holding 16 oz. and it would probably fit but it would be to the very rim. Overall an excellent bargain for the cost.

This flask has a series of foolproofs to keep it closed and leakproof, but all able to be operated with one hand. It's a gift, so hasn't been tried yet, but seems to be just what I was looking for! A vessel that will keep coffee hot and keep it from sloshing and spilling, but able to be opened and sipped easily. Great gift!

This is an okay travel mug. There is a glaring design flaw, however, in that the clip that holds the top secure is in the way of the hole you drink from when the top is open, so your lip rests on the clip. Not very nice. This mug looks cool, is easy to carry, doesn't leak, and keeps your coffee hot. Probably better for pouring into a cup, not great for drinking directly from it.

Glad I purchased this! Kept my cold drink cold for hours! Won't fit under my Keurig, but I just use a large glass measuring cup under the Keurig and then transfer the contents to this product. Easy to open plus a great feature for me is that large ice cubes fit in without any problem! Supplier shipped fast and packaged well. I'd buy again. Should make a 24 ounce version!

I have bought many insulated stainless mugs (to my husband's dismay). They have all failed. I've had leaky ones, ones that weren't supposed to tip over. This might is THE ONE. The only one that is dishwasher safe. Now, I haven't tried it in the dishwasher yet. If it fails the final test I'll get back to you.

We use this almost daily! Very good, but do well to hand wash it after every use!

Great as a profeasional driver that atarts early on cold mornings. I am able to put hot cocoa mix in with water and shake (yes shake) to mix without leakage. Drink stays hot!!!! Drinking set up is nice too.Can I please have one in a 20-24 oz size? Pretty Please?

It does work great for keeping drinks hot, but functions better as a thermos for me. It's really awkward with the lock placement to drink out off. The lid hits me on forehead while tipping to drink ( too little clearance). I end up with coffee on my bangs.