Up to 7 hours and cold for up to 18 hours. In addition, it features a uniquely designed, subtly textured grip for comfortable holding and easy portability Leak-Proof Lid: Ensures no spillage during travels Thermalock Double-Wall Insulation: Keeps drinks hot up to 7 hours or cold up to 18 hours One-Handed Drinking: One-piece lid means no lids or caps to remove or misplace Secure Grip: Subtly textured for a comfortable hold and fluid movement Cup Holder Compatible: Perfectly fits in standard-size car cup holders Single-Serve Brewer Compatible: Conveniently fits under most single-serve brewers CAPACITY: 20 ounces