Renowned Tritan TM plastic is crystal clear and impact shatter resistant. Great for measuring protein drinks mixing salad dressings portion control or mixing beverages. Exclusive MiLiOZ measurement system inside of the cup!. Decoration is sealed between the two walls protecting it from wear. Double wall does not sweat when cold or burn your hand when hot. Dishwasher freezer and microwave-safe. Made in the USA. BPA Free meets FDA requirements.