A VEHICLE SEAT

There is proposed a vehicle seat configured to support an occupant () in a sitting position, the seat comprising: a squab (), a backrest (), and an airbag unit. The airbag unit comprises an inflatable bag () and an inflator (). The airbag comprises an inflatable chamber (). The airbag further comprises an inflatable guide (), connected to the inflator and the inflatable chamber. Upon actuation of said inflator, said inflatable guide is at least partially inflated before the inflatable chamber, thereby initially urging the inflatable chamber away from the backrest of the seat. The airbag is configured such that after the inflatable guide is at least partially inflated, the inflatable chamber inflates into a deployed position in which it defines an inflated shroud which extends over said sitting position and provides lateral protection to said occupant of the seat in said sitting position.