Vehicle seat

A vehicle seat comprising a seat back that includes a back pad supported on a frame and supporting a back of an occupant, the back pad having a middle pad part and left and right bolster pad parts connected to left and right sides of the middle pad part, and a back pad outer skin covering a surface of the back pad, the back pad outer skin having a cover skin detachably mounted on the seat back, and the bolster pad part on a door side having thereinside an airbag module including an airbag,

• the back pad outer skin having a first portion covering a surface of one part, including a side face, of the bolster pad part, and a second portion covering a surface of another part that is different from the one part of the bolster pad part,
• a bound part being formed by binding to each other mutually adjacent end parts of the first portion and the second portion and an extremity part of an expansive force transmission webbing having a base portion fixed to the frame, the bound part being capable of breaking when the airbag is made to expand, and
• a non-stretchable cloth member being disposed on a reverse side of a specific outer skin portion, covering a front face of the bolster pad part, of the second portion.