America 250 Series - Limited Edition - 250 Years of Freedom. Built to Last.To mark 250 years of American freedom, we created a extremely limited run of our Yogi Evolution tumblers. Same breakthrough design. Same ceramic innovation. Now in a special edition that stands for something bigger. The Evolution of the Tumbler - Reinvented from the Inside Out.Our revolutionary Yogi Evolution tumbler features a shatterproof ceramic lining that runs all the way to the rim, so there&';s no exposed metal on any drinking surface. That means no metallic bitterness, no nickel exposure (critical for people with metal allergies), and no lingering aftertastes-just the clean, pure flavor of whatever you&';re drinking. Sip from the lid, use a straw, or drink straight from the cup: your mouth never touches metal. Easy open Leakproof Flip & Sip Lid Flip Lid, sip it, seal it - our easy-open, leakproof Flip & Sip lid gives you total control with zero spills. Made of impact-resistant Tritan plastic. Stays fully leakproof whether it&';s in your bag, in your car, or on the move. PureTaste Shatterproof Ceramic Lining No Exposed Metal on Any Drinking Surface - ceramic to the rim, lid on or off Spillproof - Easy Open Flip & Sip Lid Nickel-Safe Interior Ideal for people with metal allergies or sensitivities Double Wall Vacuum Sealed Keeps drinks ice-cold up to 48 hours Keeps drinks piping-hot for up to 5 hours Cupholder Compatible - Fits in standard cupholders Dual Thread Lid - For right or left hand use BPA Free Dishwasher safe Rugged powder coat finish Recycled 18/8 food grade stainless