before i got this i was thinking "hmmmm...why would i need a heat resistant glass tumbler" I can just get a regular glass cup for beer and other drinks. but i realized i can do much more with this glass. I can pour water in and heat it up in the microwave for quick hot water, then throw in any drink powder or instant coffee, which will easily dissolves. i can also put it in the fridge or throw in ice for a cold iced drink.
By Matt from San Diego, CA