The present invention as disclosed herein surrounds a cooling apparatus configured to provide an enclosed envelope and cooling-pack for a reduced form-factor. Embodiments of the present invention provide a cooling apparatus for the transportation of beverage containers in a manner that keeps them colder for longer periods than transport within a non-insulated transportation device. The efficient and compact cooling of beverage containers as provided by the present invention in certain embodiments allows the user to transport the cooling apparatus within a backpack, handbag or other secondary transportation device.