Kyocera introduces the perfect companion for commuting to the office, school, attending outdoor activities, or just relaxing at home. Whether you're an all-day coffee, tea, or water drinker, or a morning smoothie lover, this thoughtfully designed travel mug is spill-proof. Release the safety lock with one touch, and enjoy your beverage at any time! The slim exterior design is easy to grip, and the ceramic-coated interior keeps liquids hot or cold for at least 6 hours to 12 hours depending on the starting temperature.