A cooler bag is a handy accessory that people use to carry food and drinks while traveling. The bag is designed with insulating materials that keep the contents of the bag cool or warm for a long time. There are different types of cooler bags available in the market with varying sizes, shapes, and colors. If you are looking for synonyms for a cooler bag, you might consider terms such as insulated bag, ice bag, lunch bag, chilled bag, cooler tote, and beverage bag. These terms can be used interchangeably, depending on the context in which the cooler bag is being used. Ultimately, the purpose of these bags remains the same- to keep food and drinks fresh and cool for an extended period.