Excellent Thermal InsulationThis travel coffee mug is designed with double-layer stainless steel, which provides excellent thermal insulation. Whether you need to keep your morning coffee hot during a long drive or your iced tea cold on a hot day, this insulated coffee mug will keep your drink at the perfect temperature for hours. Leak-proof Design for Worry-free TravelEquipped with a precisely engineered leak-proof sealing ring, this travel mug ensures that your bag stays dry, even when you're on the go. Whether you're on the go, traveling, or simply at work, the leak-proof design prevents spills and messes, allowing you to confidently pack your coffee mug with electronics and other essentials. Dual Drink Mode with Hidden StrawThis versatile travel coffee mug features a dual drink mode, allowing you to sip directly from the wide mouth or use the foldable hidden straw for convenient hydration on the go. Whether you're enjoying a hot latte or cooling off with a smoothie, the flexible drinking options make it perfect for any type of beverage and any occasion. Portable and Easy to CleanThis insulated coffee mug features a wide-mouth design for easy cleaning and a nylon strap for easy portability, making it your perfect travel companion. The large opening allows for thorough cleaning by hand or with a brush, and its lightweight and portable design makes it easy to take with you whether you're heading to the gym, office, or on a weekend getaway.