Features Well Designed: Our stainless steel water mug is designed to prevent temperature changes or condensation on the outer layer, ensuring the mug never leaves stains and you won't burn yourself. Double-Walled Vacuum Insulation Technology: High-tech insulation prevents heat transfer to the outside of the mug, keeping your cold drink cold for nearly 24 hours and your hot drink scalding hot for up to 8 hours. Easy to Carry: The special shape makes the insulated mug suitable for car cup holders, easy to carry, and won't increase the burden or cause additional energy waste. 304 Stainless Steel: Uses high-quality food-grade 304 stainless steel for the inner wall, unbreakable, electro-polished on it to ensure your mugs don't rust easily. Top Lid Design: The top lid design has the function of reducing splashes, can prevent awkward situations and improve your user experience. Specification Item Type: Vacuum Insulated Bottle Material: Inner 304 Stainless Steel, Outer 201 Stainless Steel Color: As Picture Shown Use: for Drinks, Water Gross Weight: Approx.430g/15.2oz Package List 1 x Vacuum Insulated Bottle