1. Sufficient capacity: The size of the lunch bag is 23.5 * 18.5 * 14 cm/9.25 * 7.28 * 5.5 inches. This lunch box bag provides enough space and is very suitable for your lunch box, snacks, fruits or vegetables. Such a practical independent function can enrich your daily life and is suitable for storing food for work, outdoor activities or school. 2. Top - quality materials: The women's insulated lunch bag is equipped with a sturdy handle and a smooth zipper. The inner layer material is designed for use. It is made of environmentally friendly aluminum foil material, which is lighter, softer and has better heat - preservation effect. Our lunch insulation bag uses waterproof aluminum foil and durable Oxford cloth for outdoor use. It is suitable for storing various foods and can improve your daily life. It can keep food fresh, healthy and cold/warm for about 4 hours. 3. Stylish and practical design: This cooler bag, picnic bag or sundry bag is portable and lightweight, with a handle. You don't have to worry about it breaking, and it has a two - way zipper, which makes the zipper smoother and easier to pull. This cooler bag is equipped with a transparent front pocket for placing cutlery sets, photos, keys and mobile phones. The multi - functional cooler bag is very suitable for storing food and fruits. At the same time, it can also be used as a sundry bag, shopping bag, mother - and - baby bag, handbag, etc. It is lightweight and portable, with a padded handle, an upgraded durable and smooth zipper, easy to clean, can keep warm and cold, and is comfortable to carry. It has a fashionable design. 4. Ideal gift choice: It is an ideal gift for birthdays, Christmas and Thanksgiving.