Abstract: A cooler and methods of storing the cooler in a bag such as a purse are described herein. The cooler can have a strap allowing it to be used as a stand-alone device. The cooler can have securing devices such as magnets embedded within two pockets on a side wall of the cooler. The pockets can be located on the top half of the cooler to prevent tipping and are movable within the pockets so that the magnets can be positioned to avoid obstructions on the bag. The cooler magnets can be magnetically mated with magnets used with protective covers on the outside of the purse (zero purse modifications) or with magnets embedded within the purse wall.