evron spill proof travel mug with anti-leak locking lid, insulated double-wall coffee mugs for hot and cold drinks (16oz 4 pack) evron <p><br /> double-layer insulated travel cup, it never burns your hand when the cup is loaded with freshly brewed coffee since the outer wall only has the temperature of about 104°f (40°c), and the body surface temperature of the palm is around 89°f(32°c), so it will not be hot, cold winter can also be used to warm hands also. best travel companion features double-wall insulation that helps keeps drinks hot or cold for 3 hours, for optimal result, best to serve hot within 3 hours<br /> since the cup body is not made by stainless steel, it could not keep hot/cool for 24 hours.</p> <p>evron is a kind spill proof reusable coffee mug. easy to hold,ergonomic and stylishly designed for modern commuters, travelers and urban explorers of today's fascinating world. whether you are driving a car, catching a train or riding on a bus, this coffee cup is the ultimate companion that will make your day brighter, able to hold up to 16 ounces.<br /> note: evron cup can be used in microwave oven and safe to dishwasher, microwave oven temperature should not be exceed 220~275°c, removed the cup cover while heating, but it is not recommended to place in the microwave for a long time!<br /> precautions before use: 1. check that the inner ring seal of the cup cover is properly installed, 2. the cup cover should be scurried against leakage .</p>