This helmet incorporates the Pro Shade shield system and features the Eco-Pure liner, a microfiber-like weave material that has a softer feel, and contains antimicrobial properties to maintain freshness longer between washes. Liner 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.