Key Features: Superior Heat and Cold Retention: Equipped with an advanced insulating structure that keeps hot beverages hot for long periods, while keeping cold beverages and ice cold for up to 36 hours. Glass Inner Flask: Comes with a pure glass flask inside that perfectly preserves the original taste and aroma of tea or coffee without any alteration. Leak-Proof Lid: A practical and comfortable design that completely prevents leaks and makes it easy to control the flow of liquids and pour them without needing to open the lid completely. Durable Outer Body: Made of premium plastic or rust-resistant materials, making it practical and excellent for daily use, easy to carry and clean. Authentic German Craftsmanship: Characterized by durability and performance that lasts for many years, with an elegant design that adds a sophisticated touch to gatherings and offices. Rotpunkt German Thermos 1 Liter Model 003-1684