AIRBAG

PROBLEM TO BE SOLVED: To provide an airbag capable of making a front-seat inflation part thereof be quickly deployed to the lower part of a front pillar.SOLUTION: An airbag body 34 includes a gas introduction part 36 through which a gas is introduced to an upper edge. The airbag body 34 includes a front-seat inflation part 41 that is inflated from a folded state with the gas introduced through the gas introduction part 36, and that has a lower end 41a thereof deployed to a position including the lower part of a rear end 21a of a front pillar 21 tilted downward to the front side. The airbag body 34 includes a front-side conduit part 47 that is located in the front side of the rear end 21a of the front pillar 21, and introduces the gas introduced through the gas introduction part 36 into the lower end 41a of the front-seat inflation part 41 in a direction intersecting the front pillar 21. Since the gas is introduced to the lower end 41a of the front-seat inflation part 41 through the front-side conduit part 47, the front-seat inflation part 41 can be quickly deployed to the lower part of the front pillar 21.