Slipstreamer S-192 Windsheild - 13in. - Clear S-192-13 The 13in. and 16in. shields are made out of .177 Lucite clear aircraft quality acrylic The 6in. and 10in. are made out of Lucite .118 Dark Smoke aircraft quality acrylic Optically clear, stronger and more rigid than the O.E.M. shields which gives better airflow