Splash Proof Tumbler Lid Fits 30 oz YETI, RTIC, SIC, FROSTI and Many Other Tumblers ENGINEERED DESIGN: These tumbler lids were built for with a premium retractable straw opening. This means your drinks stay hotter & colder longer while remaining splash proof! PREMIUM QUALITY: We used only the highest kitchen grade materials to create these covers. You can rest assured that the opening and sealing gasket will last for a long time! AMAZING VALUE: Our lids were designed to be compatible with virtually any 30oz. tumbler on the market. We will prevent spilt drinks, no matter what brand tumbler you have! ECO FRIENDLY: The materials we use are FDA approved and BPA free. Choosing our environmentally friendly lids keeps plastic bottles out of landfills and your body free of toxins! 100% SATISFACTION: We use these tumbler lids daily which is why we are so confident you'll love yours. If you are unhappy with your purchase, return it anytime - no questions asked!