Vehicle Seat

In a vehicle seat () comprising a seat cushion () and a seatback (), the seatback comprises a seatback frame () including a right and a left side member () extending vertically, a side airbag unit () attached to one of the side members, a flexible seatback pad () provided with a pad side slit () to permit an airbag to be deployed opposite to the side airbag unit, a skin member () having a skin side slit () in a part thereof corresponding to the pad side slit, and a retaining sheet () connected to a part of a back side of the seatback pad opposing the side member, and to the side member so as to fixedly secure a position of the seatback pad relative to the side member.