Abstract: A trim material attachment assembly for a seat includes a cushion having first and second sides and an aperture formed therethrough. A trim cover is provided for covering the first side of the seat cushion. A one-piece, integrally molded trim holder includes a central member disposed in the aperture of the cushion. The central member has first and second ends. A clip is formed at the first end of the central member and engaged with the trim cover to secure the holder to the trim cover. A leg is formed at the second end of the central member and is connected to the second end by a living hinge permitting the leg to move between an assembly position to allow the plate member to be inserted through the aperture, and a holding position to prevent the leg from being pulled through the aperture, thereby securing the trim cover to the cushion.