By popular demand…TERVIS TUMBLERS! All feature the cloth royal blue trident embedded in the high grade polycarbonate double wall insulation that made Tervis famous. This is the original and oldest insulated tumbler in the USA and carries an Unconditional Lifetime Guarantee. Tervis drinkware keeps cold drinks cold, hot drinks hot, reduces condensation and is dishwasher safe. We offer three styles of Tervis tumblers: 17oz handled mug 12oz. low ball 16 oz. classic tumbler - 17 oz. handled mug on SALE only.