Lunch bags are portable containers designed to hold meals and snacks for easy transport. They come in various sizes, materials, and styles, making them suitable for children and adults alike. Many lunch bags are insulated to keep food fresh and at the desired temperature, while some feature compartments for organization. These bags often include handles or straps for convenient carrying. Popular materials for lunch bags include nylon, canvas, and plastic, which are durable and easy to clean. Some lunch bags also have fun designs or characters, appealing to kids and encouraging them to enjoy their meals on the go.