When I first received these and started using them, I was really impressed that you could use these with hot hot coffee and not get burned. You don't need a sleeve while drinking out of these cups. These cups keeps your beverage warmer longer and also prevents heat from escaping the cup while protecting the user from burning their hands without the use of a jacket or sleeve.
These cups are made of plant material..and honestly are the best cups around. It's chlorine free and uses soy based inks, these are the greenest cups around. If you are looking for ways to be green and protect the earth then these cups are the way to go.. they so much better than styrofoam cups. You can reuse them by planting little tomato plants and they really have a great feel to them. I can't say enough about these cups just that I wished I would have noticed them sooner.
You can buy these cups at this store Bed bath and beyond
Disclosure: I received this product for review purposes only, no monetary value was exchanged.