- [Upgraded Cup Lid] We have enhanced our cup lid based on extensive market research. Key improvements include: 1. A new black sliding piece that resists dirt and stains better than the previous transparent version. 2. A reinforced silicone ring that prevents spills even when the cup is inverted, while also improving insulation. - [Premium Design] Crafted from high-quality 18/8 stainless steel, this vacuum insulated coffee mug is built to last and will never rust. Its design is ideal for laser engraving, and the powder-coated finish offers a stunning pearlescent appearance. This finish also prevents sweat stains and simplifies cleaning. - [Vacuum Insulation Technology] Utilizing advanced double-layer vacuum insulation, Volhoply's mug keeps your beverages at the perfect temperature for extended periods. Enjoy your favorite drinks hot for over 3 hours and cold for more than 9 hours, whether indoors or outdoors. - [Multi-Purpose Use] With a 14-ounce capacity, this stainless steel coffee mug is perfect for everyday use at home, in the office, or outdoors. It's an excellent companion for activities like beach trips, camping, and travel, ensuring you can enjoy your drinks wherever you go. - [Ideal Gift] This versatile mug makes a thoughtful gift for various occasions, including birthdays, Mother's Day, Father's Day, and Christmas. Share the joy with your loved ones and enhance their daily routine with this practical and stylish mug.