AIRBAG AND METHOD OF MANUFACTURING SAME

An airbag, wherein gas is appropriately discharged from a vent hole by preventing a vent hole cover from being positionally displaced relative to the vent hole. An airbag (30) is provided with a cover guide member (70) which allows a vent hole cover (60) to move at a predetermined bag inner pressure to open a vent hole (34). The cover guide member has an opening (77) formed at a position corresponding to the vent hole.