VEHICLE AIRBAG SYSTEM

An assembly includes a seat. The assembly includes a housing. The assembly includes an airbag inflatable to an inflated position having a first inflatable leg and a second inflatable leg extending from the housing, and an inflatable member extending from the first inflatable leg to the second inflatable leg. The assembly includes a tether having a first end fixed to the first inflatable leg and a second end spaced from the first end and the airbag.