Tronco 20 oz Glass Tumbler with Bamboo Lid & Straw

The cup 33,000+ ratings agree on - by far the most-reviewed piece of drinkware Tronco makes, and the shape most people picture when they hear the brand name. Borosilicate glass takes anything from -20°C to 150°C, so the same cup handles a frozen smoothie at breakfast and hot tea at night. At 2.95 inches across it slides into a car cup holder, and the maker figures each one replaces about 500 disposable cups a year.

• The brand icon: 33,000+ ratings, more than the rest of the catalog combined
• Borosilicate glass survives -20°C to 150°C - iced or steaming, same cup
• Bamboo lid with silicone gasket resists spills; two reusable straws included
• Slim 2.95-inch body drops into most car cup holders