YINJOYI Travel Mug Reusable Insulated Coffee Cups Vacuum Thermal Tumbler for Hot & Cold Drinks Leakproof Stainless Steel Travel Bottle (Black, 510ml)

Excellent quality and design. Very comfortable to hold. 100% leakproof due to a great seal and locking mechanism- even when tipped up. It keeps the drink warm for several hours. Great range of colours. I use mine everyday and wouldn’t be without it.

Great insulated mug at a good price. Keeps the drink hot for a good time and nicely made.

These travel mugs are great for keeping drinks hot for a long time. They look nice and have great colours. Nice and easy to clean too! I have purchased 2 of these, one black, one teal. The black one is perfect with no leaking. But annoyingly the teal one does leak from the lid so any slight tilt, and it spills out the top! Not sure if I was lucky to get a non leaking one… or unlucky to get a leaking one! 😅 Other than that, these are great travel mugs!

Love these. So much so I now have 2. Went for the bigger option because who doesn’t love more tea! Brilliant seal. I have chucked these in my bag and knocked them over but no spillages. Fit in cup holders etc. keep drinks hot for a few hours and warm for a couple more after that. I like how they feel to drink out of. No weird dribbles anywhere when drinking. 100% would recommend.

I've had my mug for over a year (and bought hubby one in another colour). They are by far the BEST we've ever had. They have an excellent screw top lid; they fit in the car holder; well insulated so drink stays hot; never too hot to hold and can be sealed to not spill if in a bag or gets knocked over. Definitely money well spent and I can't recommend more highly!

This is an honest to god amazing cup!! Keeps my drinks hot for HOURS!! Which in my very busy job is an absolute god send!!

Keeps my coffee hot during a 6 hour shift. Amazing quality. I’ve dropped outside so many times and it’s perfectly fine. Fit in car cup holders. I’ve also brought for family

I bought 4 different makes of these travel/insulated cups/mugs, they all function pretty much the same, stainless steel double walled lining with some sort of either paint/laquer/plastic coating and all sorts of caps with different stoppers. None of them leaked when shaken up and inverted with hot liquid inside, but then i wouldn't expect them to as they are all brand new, only time and use will decide how resilient the seals are. In terms of heat retention (I wasn't interested in keeping drinks cold) I tested them all the same way, preheated each mug with boiling water and then poured 350ml of boiling water in, and sealed them. I can only say that the claims made by all the manufacturers that these devices keep dinks hot for hours is absolute twaddle and misrepresentation. Buyers who reviewed these mugs claiming that their drinks stayed hot for hours certainly have no understanding of the word “hot” After two hours the contents of all of the mugs had dropped in temperature to around 50-55c…that is not “hot” in the understanding of “hot” tea or coffee and reviewers are greatly exaggerating the performance of these mugs. If you make a hot drink like tea or coffee, it will be pretty much only warm after 2 hours. If you like your hot drinks hot you would need to consume them within an hour and a half or less for them to be reasonably described as “hot”. All of these type of dual walled stainless steel mugs, no matter what make or design…or price, are going to be around the same or worse performance, quite disappointing actually. I'm afraid if you want hot drinks to stay HOT for a few hours you will have to go back to the old fashioned Thermos flask situation, and by that I mean the glass walled Thermos & unfortunately they are prone to shattering if dropped or abused but they at least do what it says on the “tin’ I really don't know why when buyers review these things they make wildly exaggerated claims about drinks being hot “hours” later, its just simply not true, if you like tepid tea and coffee, fine, I don't, hot drinks should be hot and cold drinks should be cold.

Erfüllt seinen Zweck für den schnellen Kaffee zwischendurch, hält ausreichend lange warm, ist definitiv auslaufsicher

Isolierleistung Spitze, Dichtigkeit super, (so gut dass wenn man Kohlensäure im Getränk hat, der Schaub-deckel wegfliegt wenn der Druck zu hoch wird) sollte der Becher im Auto (im Becherhalter) benutzt werden lasst den Trink-verschluss offen! -er hält trotzdem lange die Temperatur. #noch was er ist komischer Weise schneller Leer als eine Flasche mit gleichem Volumen!!

I've had this mug for forever now and just bought it as a gift to a friend. Mine fell down onto stone several times and there is no leakage, the heat gets stored so well that I'll always have to wait for about an hour to drink my tea without burning my mouth. Also, this mug is so easy to clean! Definitely recommend!

It was up to my expectations, keeps my coffee warm for a long time, it is of a perfect size for me (2 cups) fits great in my car and seems strong enough. It's sometimes a bit difficult to open, but once I understand how to grab and twist the cover it's no longer an issue (it was for the very first time I tried to open it). I think I will buy one more for my wife...

Works very well, used several times now and no leaking. Size is perfect. Great price. Looks good. Keeps my coffee a good temp for at least a few hours.