Key FeaturesDual Layers: Two separate compartments to organize different types of food or beverages.Insulation: Typically features 5mm EPE foam for thermal retention, sometimes keeping items cool for up to 8 hours.Portability: Includes reinforced handles and an adjustable, detachable shoulder strap.Material: Made from durable, leakproof fabrics like Oxford cloth or nylon with a water-resistant lining