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.NEVER COMPROMISE FLAVOR: The ceramic interior will never impact the taste of your beverage and will never rust.VERSATILE ON-THE-GO MUG: The wide opening of the mug can be filled with ice cubes or snack food you want to insulate.COMPACT, YET EFFICIENT: The double-wall, vacuum-insulated, slim, compact mug easily travels with you and will keep your beverage hot or cold for hours.STAINLESS STEEL EXTERIOR: Stays cool to the touch with hot liquids and never sweats with cold liquids.ECOLOGICALLY-FRIENDLY: Take this everywhere and refill as needed to help reduce waste and one-time use containers.