An airbag device comprises a folded and housed airbag including: a vehicle
front-facing wall portion having a gas inlet through which inflating gas
can enter; and a passenger-facing wall portion directly opposite the gas
inlet port. In the airbag, there is arranged a flow regulating cloth.
This flow regulating cloth regulates the inflow of the inflating gas so
that the unnecessary protrusion of the passenger-facing wall portion
toward the passenger is prevented. Moreover, the flow regulating cloth
breaks at a portion made to be easily torn, before the completion of
inflation of the airbag. In other words, the airbag is released from the
regulation of the inflow of the inflating gas before the completion of
inflation.