Era Flip is the world's first 100% leakproof, covered flip-down straw tumbler designed for on-the-go refreshment. Featuring SlideSeal™ technology that seals tight for cold and carbonated drinks, a luxurious SoftSip™ silicone straw, and optional ColdKey™ metal straw to reduce plastic waste. BevGuard™ insulation keeps beverages cold for 24+ hours, while the cup holder-friendly base prevents spills during your daily routine. Perfect for commutes, workouts, and travel—stress-free sips guaranteed. 100% leakproof with cold and carbonated beverages when locked. Not recommended for hot drinks in locked position.