With its ceramic-coated interior and elegantly engineered features, the Fellow Ruby Wine Tumbler is ready to enrich every sip. -True Taste Ceramic Coating: Enjoy pure flavors without interference, as the ceramic interior prevents odors and unwanted aftertastes. -Premium Design Elements: Features like the thin, drinkable lip and smooth internal geometry tailor the flow for optimal taste and aroma. -Ingenious Swivel Pebble Lid: Offers a splash-resistant, secure sipping experience with its unique swivel design to keep your drink safe wherever you go. -Durable and Insulated: Crafted with insulated stainless steel, the tumbler keeps beverages cold for 12 hours and hot for 3. It's suitable for any weather. -Thoughtfully Crafted for Stability: The weighted base provides a substantial, premium feel in your hands, complementing your outdoor gatherings. Experience fine indoor and outdoor drinking with this wine glass.