The present invention relates to a trim material attachment assembly for securing trim material to the padding of a vehicle seat. The present invention includes an elongate wedge having a wedge tip and opposed walls joined at the wedge tip. The opposed walls extend angularly outward to define a substantially V-shaped channel adapted to receive the trim material of a vehicle seat. The trim material attachment assembly further includes a receiving member having a base adapted to engage the padding of a vehicle seat, a centrally located elevated platform and cantilevered retention tabs extending from the elevated platform. The cantilevered retention tabs are adapted to operatively receive the elongate wedge. Each of the cantilevered retention tabs includes a guide deck adapted to provide positive placement of the elongate wedge and an engaging flange adapted to releasably engage the elongate wedge juxtaposed therebetween.