Using this eco-friendly product our team found that it is an excellent alternative to disposable plastic cups .the paper and plastic layers provide insulation, keeping drinks hot or cold. Plus, the cups are sturdy enough to hold large amounts of liquid. However, we noticed that the paper layer is not very durable, and the cup may leak occasionally. Overall, this is a great addition to our Health and Household supplies, reducing our environmental impact without sacrificing convenience..See full review