Sierra Auto Tops Porsche 2003-2004 Boxster Convertible Top, Ger A5 Canvas, Black First quality German A5 Sonnenland Canvas The entire top is cut from the same bolt of cloth for consistent color & pattern DOT approved heated glass window with embedded defroster wiring Includes new steel side hold down cables already securely installed on this top Factory-style retainer attachments are sewn-in for an easy & accurate installation