The BruMate Era 40oz Tumbler is the perfect solution for keeping your beverages at the ideal temperature. Designed with BevGuard technology, this tumbler maintains your cold and carbonated drinks ice-cold for up to 24 hours. The 100% leakproof design ensures no spills, when in the locked position. It's cup-holder friendly, includes a ColdKey metal straw for your sipping convenience, and features a comfortable grip handle and a rubber grip for easy opening. If you're looking for a way to stay hydrated throughout the day, choose the BruMate Era 40oz Tumbler.