... Material:420D polyester,pearl cotton,aluminum foil 3.The cooler bag's heat insulation time is 5-7h 420D ... and zipper Size: 20.5*15*15cm This cooler bag can be used for food,wine,can,etc ... .The heat insulation time of the cooler bag is 5-7 hoursDelivery time:30 days ... , handbags,backpacks,shopping bags,computer bags, waist bags, trolley bags andother related products for more than 10 years. ...