Guava 30oz Era TumblerThe Era tumbler provides leak free convenience, making it the perfect sidekick for on the go sipping. Its fully sealed lid is suitable for both cold and carbonated drinks. It even includes a ColdKey stainless steel straw to reduce plastic use, BevGuard technology to preserve ice for over 24 hours, and a base that fits in cup holders for hassle free enjoyment of your 30oz beverage on all your daily escapades. Era Tumblers are 100% leakproof with cold