Method for assembling shoe components

A method for assembling shoe components, comprising:

• providing at least two shoe components, a shoe last and a film unit, at least one of the at least two shoe components having an adhesive layer, the shoe last having a shoe last body, the film unit including at least one flexible air barrier film;
• placing the at least two shoe components on an outer surface of the shoe last body;
• removably covering an assembly of the at least two shoe components and the shoe last with the at least one flexible air barrier film such that the at least one flexible air barrier film and the shoe last cooperatively define a confining space therebetween;
• and
• pumping air out of the confining space and heating the at least two shoe components to shrink and deform the at least one flexible air barrier film so as to press the at least two shoe components to adhere tightly to each other;
• wherein the shoe last body is formed with an air port and a plurality of vent holes communicating with the air port and the confining space, the air port being configured for pumping the air out of the confining space through the vent holes;
• and
• wherein the at least one flexible air barrier film has a through hole corresponding to the air port in of the shoe last body.