Bubba HERO Elite Vacuum-Insulated Stainless Steel Travel Mug with TasteGuard, 16 oz, Black Taste your drink, not your mug with the ceramic coating on the inside the travel coffee mug Double wall stainless steel vacuum insulated, keeping beverage inside bottle hot up to 6 hours or cold up to 24 Leak-proof lid is simple, secure, easy to clean and operate Silicone base that provides a skid proof bottom to prevent sliding Grip makes it easy to grab and go this coffee tumbler