Thermos vacuum insulation technology for maximum temperature retention. Durable stainless steel interior and exterior. Finger print resistant exterior clear coat. Ergonomically designed rubber handle. Locking release button on handle. Cool to the touch with hot liquids, sweat-proof with cold. Fits most automotive cup holders. Dishwasher durable, top rack recommended. Keeps hot for 6 hours. Keeps cold for 24 hours. 16 oz