I bought this for my 14 oz Ember mug and it is fabulous. It truly keeps coffee hot longer. Previously the coffee stayed hot about 90 minutes but with the lid, coffee stays hot 2 to 2 1/2 hours.
Solid lid. Works well and comes with two replacement sliders in colors. Would prefer a magnetic latch but tbh, it works just fine. Great option for when I need to grab my cup to go.
This top is perfectly engineered. It fit's snugly and there are no leaks. It integrates with the ember mug perfectly and it's very easy to drink from unlike other tops that dribble each time you use them. The sliding top also is just perfect and it pops off easily for cleaning. Attention to detail is what this company is all about. Now I don't need their travel mug, however, I still want one. Also keeps the heat in and the battery doesn't have to work as hard to keep the drink at 144 degrees.
I have been an Ember Mug lover for a year now, and I cannot figure out how I survived without it!! I got the lid, and now I'm truly obsessed! Keeps my coffee extra warm, and I'm not checking for a nat/bug or something that may have fallen into my coffee when I'm outside on my deck. Get the lid!!