Durable Tritan™ material. Impact and shatter resistant. Holds 12 Oz. Double wall construction for insulation of hot or cold liquids. Optional lid and matching 9" straw. Decoration is inserted between the clear double walls of the tumbler then ultrasonically sealed to provide double wall insulation. Made in the USA. Top rack dishwasher safe. Freezer safe. BPA free. Meets F-D-A requirements.