A knee airbag apparatus includes a front panel configured to face toward an occupant when the knee airbag deploys and a rear panel configured to face toward an instrument panel when the knee airbag deploys. The rear panel is joined to the front panel to form an inflatable knee cushion configured to inflate to protect an occupant's knees during a crash event. The knee airbag further includes at least one internal tether extending between the front and rear panels. The internal tether is attached to the front panel at a front panel attachment location offset from a rear panel attachment location. The knee airbag further includes an external tether attached at one end to the front panel, and at a second end at the knee airbag housing.