Sierra Auto Tops Nissan 2004-2009 350Z Convertible Top, Stayfast Canvas, Black First quality Haartz Stayfast Cloth that is precision cut with automated computer guided equipment The entire top is cut from the same bolt of vinyl for consistent color and pattern Stitched with matching colors using the finest bonded polyester threads Factory-style sewn-in attachment retainers are pre-drilled for easy, accurate mounting Deck seams are heat-sealed as original for added strength along this critical seam