It is absolutely leak proof that is biggest advantage other from other usual mug i bought previously. Highly recommend it.
Using it n loved it it's very much light n it's leak proof so no tension of spilling water very happy bought this value for money go for it without thinking
Started taking it to the office for regular use. I fill it up with hot water around 8:30 a.m. put it in my bag and leave for office. I have my tea in the office at around 10:30 a.m. The water stays hot.so I give it 5 start.
go for it...superb built quality and capacity is also good,the quality is superb. It's thick and well insulated. Keeps my coffee hot for 3-4 hours!! But once the InstaCuppa is half filled with my coffee, it gets cold by 1, max 2 hour.
This is a quality mug.it keep my tea as warm as I'd hoped and it works great to keep an ice cream serving cold. I like that it's short and wide vs. tall and slim. Very stable. Also like the handle. Most stainless mugs I've seen have skinny handles. This one is sturdy. Very happy with my purchase.