This 300ml glass sipper tumbler is a perfect blend of elegance and functionality, designed for those who appreciate a sustainable and stylish beverage experience. crafted from high-quality, durable glass, it ensures a pure, clean taste with every sip, free from any metallic or plastic aftertaste. its sleek, ergonomic design fits comfortably in your hand, making it ideal for both hot and cold beverages. the tumbler features a secure, leak-proof lid and a reusable straw, promoting eco-conscious habits while keeping your drinks fresh and spill-free. whether you're at home, in the office, or on the go, this glass sipper tumbler adds a touch of sophistication to your daily hydration routine.