I made one of these screens for myself, then was asked to make a few more for other members. Attached using velcro (included) they can be easily removed for off-road use but I ride dirt with mine in place. They shift winblast upwards to just below neckline, do not create turbulence and, for me, do not increase wind noise. I currently have 3 screens unclaimed and am happy to make some more if there is a demand. Price £15 plus shipping UK £2 Europe £3 US £4 Anywhere else, I'll need to check rates.