IRON °FLASKGrip Coffee Mug - 710 ml, Leak Proof, Vacuum Insulated Stainless Steel Bottle, Double Walled, Thermo Travel, Hot Cold, Water Metal Canteen (Midnight Black)

Really wanted a travel cup that was leak-proof, had a screw on lid and kept my coffee hot. This beauty did it so well that I actually purchased it in another color, too! On days when I have to go in to the office, I pre-heat the cup with boiling water. Then make my coffee just the way I like it (my own little concoction that fits the size of this cup perfectly!) and pop it in to my laptop bag standing up. By the time I am ready for my mid morning pick me up it's still hot! If I choose to wait until mid afternoon (and I haven't opened it for a little sip in the meantime) it's still on the hot side of warm. Would absolutely recommend!

large thermal mug, this is the best one of these I have had yet, very happy with this purchase. Will buy another for sure.

Certainly keeps my coffee or tea hot for hours by my desk.I have found the plastic screw on cap is very tight on the metal cup when screwing, and it is necessary to be very careful not to cross-thread the two, as the tight fit means you would not necessarily notice you have done it. I did it once but managed to get the top off again by standing the assembly upside down in very hot water to expand the metal to loosen it against the top.Because of the stiffnes/resistance to turning of the screw cap It requires quite a lot of force to ensure the drinking hole is facing you and not the handle (right-handed user). then again, the secure fit means it is harder to spill the contents, especially if you close the clip over the drinking hole.This next comments may be very obvious to most: If you leave the clip top in place and the drink cools inside it will create a partial vacuum inside which will make it difficult to remove/unscrew the cap when you come to clean the mug. Open the clip to release the partial vacuum. Otherwise use the immerse in hot water trick.Lastly, you will need a longer handled bottle brush to clean out residues in the bottom of the mug - fingers won't reach!

It can't fill upto 710ml as advertised with lid on! Simple as that. False advertising.

I love this mug. Holds a lot of coffee and keeps it hot for hours. The only thing I don't like is the handle. I wish the handle was a little longer and bigger.

I don't love this coffee mug. It doesn't leak, but it's somewhat bulky. I prefer the Contigo mugs. Wouldn't buy again

I love how this travel mug comes all the way apart for easy clean up. I also like how it is spill proof as long as the lid is on right. This mug keeps my coffee hot most of the day of work. It’s perfect for me when driving in my car.

The top screws in and is truly leakproof. Hot Coffee stays hot even overnight

Flip top design does not leak, is easy to open and the simple design makes it easy to clean.Love it so much I bought a second one, the 16 oz version.The only draw back seems to be, it's only for RIGHT-HANDED people. For the life of me I cannot get the lid to screw on in such a way that you can use the mug with your LEFT hand.Customer support said the flask is double-threaded however it is not, see photo.