Airbag device

An airbag device comprising:

• a bag-shaped airbag cushion in a prescribed rolled or folded stowed form;
• and
• a cover member formed of a ductile cloth material containing a plurality of polymer fibers and that is for covering an outer periphery of the airbag cushion in stowed form;
• wherein the cover member has a hard portion in a state in which at least a portion of the plurality of polymer fibers are melted together, and a soft portion in which a ratio of the plurality of melted polymer fibers is lower than at least the hard portion and that bends more easily than the hard portion;
• wherein the cover member is bent along the soft portion and covers at least a portion of the outer periphery of the airbag cushion in stowed form;
• and
• , wherein the airbag cushion in stowed form is equipped in a vehicle seat in a state connected from a side portion of a first side of a seatback of the vehicle seat across an upper portion of a headrest of the vehicle seat to a side portion of a second side of the seatback and in the cover member, the soft portion is arranged in a position bent in a shape of the seatback and the headrest when the airbag cushion is in a stowed state.