Travel coolers are totes designed with insulated compartments that keep items cold or warm. They are ideal for carrying food onboard a plane, whether you’re traveling with kids, transporting food for holiday gatherings, or sticking to a healthy eating plan. Travel coolers are also an ideal solution for storing temperature-sensitive medication, supplements, and cosmetics. Just remember–TSA’s 3-1-1 carry-on rule applies to all liquids, food included.