Made from PLA and paper our compostable cups are 100% biodegradable, reliable and heat resistant. Some of our cups are double walled too, making them extra resistant to heat transfer. We are doing our best to be gentle on the environment, so you won’t find the normal waterproof lining of wax or plastic in our compostable cups. Our linings are made from a biodegradable plastic instead. Which means they will fully biodegrade. If this section doesn't help you find what you are looking for or you are unsure about anything, please call customer services for assistance.