Double Wall Vacuum Insulation - Maximum temperature retention & insulates hands from the cold Keeps Ice Longer - Holds ice for up to 24 hours Easy Grip Base - Taller base ensures a better grip No Sweat Exterior - The outside stays dry. No need for a coaster. Keeps it Hot - Works great for hot beverages Included Splash Proof Lid - Flip-top lid makes the RTIC tumbler splash proof 18/8 Stainless Steel - Strong stainless steel construction Air Tight Seal - Heavy duty lid seal locks in the cold Narrow & Tall Design - Fits more cup holders 16oz capacity