Insulated lunch bags are specially designed containers that help keep food and drinks at the desired temperature. They are typically made with materials that trap heat or cold, ensuring that meals stay fresh for longer periods. These bags often feature a zippered closure and a durable exterior, making them easy to carry and clean. Many insulated lunch bags come with additional pockets for utensils or napkins, enhancing their functionality. They are popular among students, workers, and outdoor enthusiasts who want to enjoy homemade meals on the go. Brands like Igloo and Fit & Fresh offer a variety of styles and sizes to suit different needs.