Made with up to 1 post-consumer plastic water bottle per glass. 100% recyclable. No glass = no stress. Guaranteed to never break, chip, or crack. BPA-free and made in food-grade facilities with the highest cleanliness. Sustainably lightweight and sturdier than standard disposables. The ultimate party vessel that's good looking, functional and sustainable. To reuse, clean with a non-abrasive sponge under cold water. glasses are not dishwasher safe and are not compatible with heat or hot liquids. Feel free to use the glasses straight out of the sleeves upon receiving them. Our products are made in food-grade facilities with the highest level of cleanliness. After use, place them in the recycling bin so they can be made into more cups. Or jackets. Or carpets. You get the idea.