In 1946, Detroit engineers Frank Cotter and G. Howlett Davis created the world’s first permanently sealed, double-wall insulated tumbler as a way to keep hot drinks hot and cold drinks cold longer. Their innovative design would reduce condensation and change the drinkware industry forever.

Combining the last three letters of their last names, they dubbed their new cup brand ‘Tervis’. Today, Tervis offers six tumbler sizes, a Mug and Water Bottle, accessories and 1000s of customizable designs to suit every interest and passion.

Tervis products are backed by a lifetime guarantee and are proudly made in America at our headquarters in North Venice, Florida, where over 650 people are employed through this family-owned-and-operated business.