Enjoy your favorite beverages in style with our 400ml glass sipper tumbler. crafted from high-quality, durable glass, this sleek tumbler is designed for both everyday use and special occasions. with its transparent design, you can easily see the contents, making it perfect for water, juices, iced teas, or smoothies. the built-in sipper and secure lid ensure a spill-free experience, while the straw allows for easy sipping on the go. ideal for those looking for a sustainable, eco-friendly alternative to plastic cups, this tumbler combines functionality with a modern aesthetic. whether you're at home, at the office, or on the move, this glass tumbler makes hydration effortless and stylish.