Wind tunnel designed and tested, the hips provide added downforce while the flip at the tip directs air over the rider to help eliminate the swirl of air found in front of the rider on standard windshields. Lexan Polycarbonate with FMR hard coating is used to create these custommolded designs with unmatched durability. All are predrilled for easy mounting using stock windshield hardware. Made in the u. s. a. NOTE: The black version may not be suitable for shorter riders as its an opaque material. The Klock Werks Flare Windshields are protected under United States Patents: D632235S, D586274S, D586275S, D633017S, D626046S, D633018S And also under International Patents: 324093, 324094, 325192.