Material: Made of food-grade stainless steel (often SUS304 or 18/8 grade).
Insulation: Features double-wall vacuum insulation for maximum temperature retention, keeping contents hot or cold for many hours (e.g., 6-12 hours depending on conditions and model).
Leak-proof: Equipped with a silicone sealing ring to prevent spills and leaks.
Design: Often includes multiple, detachable compartments for carrying different foods and a handle for portability.
Usage: Ideal for taking meals to work, school, picnics, or during travel.