Arai Signet-Q Pro-Tour Scheme Green Full Face Helmet - Large Incorporates new Pro Shade shield system Features brand new Eco-Pure liner, softer feel, anti microbial properties to maintain freshness between washes, does not attract or hold dirt as readily Special accommodations for mounting speakers in the ear cup area Slightly longer front to back length than the RX-Q for true long oval fit Larger eyeport openings as found on Corsair V, RX-Q, and Vector-2