Hot Cold Double Wall Stainless Steel Thermal Water Bottle Vacuum Insulated, 15oz. Capacity - Matte Black A Innovative Design Lid for a Thermos You Can Sip or Pour Directly From. Spring Loaded Flip-up Cap for Quick Drink Access to Your Beverage on the Go. Double Wall 18/8 Stainless Steel, Vacuum Insulated. Enjoy 12 Hours Cool / 6 Hours Warm 1.6" Opening for Easy Cleaning, Filling, & Ice Cube Insertion. Will fit most vehicle cup holders. Hand Wash. (dishwasher temperatures & abrasiveness vary)