Innovative suspension bridge opening design maximizes the space of lunch bag and provides sufficient space for your daily lunch. This opening is easy to reach every corner of the insulation bag, which is easy to clean and maintain. Waterproof and tear-, the zipper operates as smoothly as silk. Food grade aluminum film lining ensures safety. The well-designed widened and thickened handle is soft and comfortable to hold, ensuring that your hands not be tired when carrying this insulated lunch bag. Napkins and mobile phones can be conveniently placed in the back pocket, while the mesh bag in the flip cover can safely store tableware and snacks. Excellent heat preservation ability enables this lunch box to keep food cold or warm for more than 3 hours, making it an ideal choice for transporting breakfast and lunch. Suitable for work, picnic, travel and other occasions. In order to enhance the thermal insulation performance, just add an ice pack to the handbag.