A convertible top of a motor vehicle with a convertible top fabric and a plastic window which is located in a cut-out of the fabric of the top. In an edge area (4) of the window (2), either an edge (3) of the fabric (1) of the convertible top bordering the cut-out or an attachment means which is connected to the fabric (1) of the convertible top is securely molded in. The window (2) can be produced in a casting or injection molding process and in this production process the edge (3) of the fabric or the attachment means is embedded in the window during its manufacture.