Era Flip 40OZ Tortoise Shell

The world's first 100% leakproof, covered, flip-down straw tumbler — engineered for stress-free sips on the go. This 40oz Era Flip features our SlideSeal™ lid that seals tight around cold and iced carbonated beverages, a luxurious SoftSip™ silicone straw for every sip, and an optional ColdKey™ metal straw to reduce plastic. BevGuard™ technology keeps drinks cold for 24+ hours, while the cup-holder-friendly base means no leaks, no spills, just the freedom to move through your day with confidence.

Leakproof performance guaranteed when locked with cold or iced carbonated beverages (50% ice to liquid ratio recommended for carbonates). Not designed for hot beverages in locked position—pressure buildup and scalding risk apply. Your new favorite companion for hydration without the mess.