Introducing the Sierra leak proof vacuum coffee tumbler, the ideal companion for your daily brew. It features a vacuum insulated double wall stainless steel construction, ensuring your drinks stay hot for up to 5 hours and cold for up to 15 hours. With a practical 280ml capacity, it fits perfectly under most coffee machines. The sleek design is complemented by a stylish silicone band, providing a comfortable grip and modern look. Durability meets functionality with this meticulously engineered tumbler, perfect for busy mornings and long commutes. It is also designed with a secure, leak proof lid to prevent spills, making it an excellent choice for both home and travel. The Sierra coffee tumbler can be personalized to add a special touch, making it a great gift option for coffee lovers. Enjoy your favorite beverages at the perfect temperature, any time of the day with the Sierra leak proof vacuum coffee tumbler.