The only drinkware you'll ever need! Genuine double-wall insulated Tervis® Tumblers are made from the same high-grade polycarbonate used in bullet proof shields, which makes them virtually indestructible! The inner and outer walls are ultrasonically sealed so that they stand up in the microwave, freezer, and dishwasher. Plus, the double-wall insulation means cold drinks stay colder and hot drinks stay hotter. Condensation is virtually eliminated, so no more messy rings! Tumbler features an embroidered C5 Corvette emblem design sealed between the inner and outer wall.