There is provided a vehicle seat having an air passage formed to extend in an in-plane direction in a pad for supporting a body of an occupant. The curving support member includes a support portion which supports a surface on the side of a direction in which the first reflection member curves, a contact portion of the support portion with respect to the first reflection member is of a shape having a curvature. The blade may also comprise shock-absorbing elements embedded into the molded outer surfaces of the blade. An interior of the container is in fluid communication with the ambient atmosphere through the channel for conveying a gaseous waste stream that includes vaporized unreacted isocyanate out of the container and into the ambient atmosphere.