The Insulated Picnic Satchel's wide mouth opening provides easy access and easy loading. Thermal insulation, Therma-Flect radiant barrier and SuperFoam base keep food cold or hot for hours and there is an Ultra Safe leak proof lining with Microban to protect against bacterial odors and stains. The exterior of the satchel features a handy pocket, removable, adjustable shoulder strap and carry handles for easy transporting. Some tips for getting the most from your Insulated Picnic Satchel This product was designed to transport hot and cold food together. As warm air rises and cool air falls, to ensure the best results, place cold food in the bottom compartment and hot food in the expandable top compartment. Place ice, ice packs or ice substitutes on top of covered contents for best cooling results and hot packs underneath for best heating results. The hotter or colder the contents are when placed inside the carrier, the longer cold or heat will be retained. Easy to clean: Both the interior and exterior of this product can be easily wiped clean with a damp cloth with mild dishwashing liquid soap. Practice food safety: When transporting food, it is extremely important to keep cold food cold and hot food hot so that your food never reaches the "temperature danger zone". This is where bacteria can grow quickly and cause food related illness. Keep cold food at or below 40 DegreeF and hot food at 140 DegreeF or above. An appliance thermometer is an easy way to make sure your foods are at the right temperature.