⭐【Design】: The inside and outside are made of high-quality 304 stainless steel, double-layer design, and vacuum-sealed, powder coated, wide mouth, easy to clean, lightweight, compact, fits most car cup holders & backpack pockets. ⭐【Hot and cold dual heat preservation】: It can be perfectly and lastingly preserve the temperature of the drinks (cold or hot) for 4-6 hours. Silicone seal is 100% leak-proof and splash-proof, silicone seal on the lid provides a good leak-proof effect. ⭐【Uses】: This travel cup is ideal for storing any hot or cold drinks, from fruits to fine wine, coffee, cola, beer and other beverages. This sturdy and durable quality, well designed, sturdy and durable, drop-proof and rustproof. Better than using plastic or glass bottles. ⭐【How to use】: The top of the lids can be 2 in1 flip lid with Straw hole and sliding lid. Drink directly or with straw, can be used repeatedly, Tight well the lid cover of coffee mug while drinking. Make sure your drink kept at the ideal temperature. ⭐【Best gift of travel cup】: This multi colors travel cup designed for everyday use at home, office, outdoor, sports, traveling, camping and driving. Perfect for office workers, drivers, students, teachers, BBQ experts, party favors, sailors, etc. so why not choose ones for your family and friends as gifts.