An attachment of a surface cover to a seat back in a vehicle seat having through-holes is described. A bucket seat includes a pad provided with through-holes, a surface cover configured to cover a front surface of the pad, and a back frame disposed on a back side of the pad. The back frame includes: a support portion provided with through-holes positioned to face the first through-holes, the support portion being configured to support the pad; and retaining portions provided around the through-holes and configured to retain hooks of the surface cover. The support portion and the retaining portions are integrally molded.