Double-Walled Vacuum Insulation: Exllena insulated coffee mug can keep your drinks warm/cold for up to 6 hours. Ideal for both hot and cold beverages throughout the day. 3-in-1 Multi-Function Lid: Our thermal coffee travel mug offers three options: direct sipping, straw usage, and a convenient carrying handle. Perfect for various drinking preferences and occasions. Leak-Proof and Spill-Proof Design: The design of car coffee cup prevents spills and leaks, ensuring your beverages stay securely inside. Ideal for travel and on-the-go use. Healthy Material – Double-Walled 304 Stainless Steel: Crafted from high-quality 304 stainless steel, this stainless steel coffee tumbler is not only durable but also safe for daily use Perfect Capacity with Carabiner Hook: This travel mug coffee fits perfectly into your daily routine with its optimal capacity. The included carabiner hook allows you to clip it onto your bag or belt loop for easy access during hikes, commutes, or office breaks. Exllena 16oz Tumbler with 3 in 1 Lid - Travel Coffee Tumbler - 100% Leakproof and Spill Proof for Hot and Cold Drink - Coffee Mug for Travel, Office, School...(Red)