Multilayer film, laminate, airbag, and method of manufacturing laminate

An airbag comprising:

• a fabric formed to have a shape of a bag;
• and
• a multilayer film including
• an adhesive layer that includes a thermoplastic polyester elastomer and a polymer having a Shore D hardness of less than 80, the adhesive layer including at least a first layer and a second layer of different compositions;
• and
• a barrier layer bonded to the adhesive layer, the barrier layer including a thermoplastic polyester elastomer, and having a melting point equal to or greater than 180° C., wherein
• the fabric is adhered to the first layer of the adhesive layer;
• the barrier layer is adhered to the second layer of the adhesive layer;
• at least one layer of the first layer or the second layer includes the polymer having the Shore D hardness of less than 80;
• and
• a content ratio of a soft segment in the thermoplastic polyester elastomer included in the barrier layer is 5% by weight to 60% by weight with respect to 100% by weight of the thermoplastic polyester elastomer included in the barrier layer.