An air bag includes a bag base wall having a mouth registering with an inflator and extending rearward along an instrument panel and toward the seated occupant. Spaced apart left and right sidewalls connect the bag base wall with a top wall and an occupant facing wall, thereby defining upper and lower torso restraining portions. An internal baffle has a baffle base wall sewn to the bag base wall rearwardly of the mouth and a left side baffle portion and a right side baffle portion attached to and extending from the baffle base wall and attached to the sidewalls of the air bag so that inflation gas impinges on the baffle and divides into left and right flow streams flowing on opposite sides of the baffle base wall and directed downwardly into the lower torso restraining portion and away from the upper torso restraining portion.