Verrerie industrielle en acier inoxydable 20 oz

Bought this thinking it would great. It does not keep coffee hot. Even preheating it with hot water does not help. Wish I had kept the receipt to get my money back! A disposable cup keeps coffee hot longer than this crap cup. Dont waste your money on it.

I bought this tumbler for my morning coffee and it does well at keeping it hot, however it has an open vent hole in the lid that immediately sprays coffee out like a water feature whenever knocked over

I use my mug everyday. I had to stop putting my coffee in it because I wouldn't be able to drink it until noon. My water stays cold all day, which makes me drink more water. I need to get the 30 oz size next!