Premium Insulation: All materials are BPA free to ensure complete safety. The bag features an oxford cloth lining and a layer of high-quality aluminum foil, providing excellent insulation to keep food fresh, hot, or cold for approximately 5 hours. It is also heat-insulating, waterproof, and very easy to clean. Size and capacity: 28x17x16cm, with a total capacity of 8 liters, making it the ideal size for carrying food in a practical, functional, and lightweight bag. Versatility: The bag includes two pockets for various items; the front pocket is perfect for storing personal belongings like a phone or wallet, while the main pocket is designed for food, drinks, napkins, and cutlery. Durable zipper: A strong and durable zipper that is easy to open and close. Warranty: Rest assured, products come with a European warranty. Please feel free to reach out with any questions before or after your order.