Coffee Stays Hot and ColdThis coffee mug applies high quality double-walled stainless steel construction to keep your drink at its original temperature for up to 6 hours. The stainless steel 304 construct also ensure the long-lasting flavor of your drink with no peculiar smell. Leakproof DesignBuilt to house 17 oz of your favorite cold or hot beverages, this is one coffee cup with seal lid preventing from leak or spilling (The coffee mug buckle can be closed tightly after two "clicks"). Small body design makes this coffee travel mug fit most coffee makers. Easy to Drink with One HandTravel coffee mug includes an eco-friendly flap opening that makes drinking one-handed a breeze. And the surface of the lid also has a straw hole design, which allows you to drink straight from the cup or use a straw. Comes with a silicone cover on the body, it can help you hold it comfortably. Cup holder Friendly and Easy to Carryan anti-slip rubber cushion make this reusable coffee cup with lid not only fit most cupholders, but also easy to grab and go. The sip hole on the top of the lid can let you enjoy your coffee conveniently with one hand. Functional StylePack your leakproof and spill-proof insulated mug in your bag, backpack or suitcase without any worrying about spillage or leak. Take it anywhere you want go, to office, school, travel, parties, and etc. Enjoy the nice day and nice beverage