Arai RX-Q / Corsair V / Signet-Q Cheek Pads Replacement cheek pads for Arai RX-Q, Signet-Q and Corsair V Helmets Arai's new and truly unique sculpted cheekpad shape cradles the head from underneath for a level of comfort and security that needs to be felt to be believed. With more surface area, it moves away from the typical pressure fit to a more comfort fit based on the design's cradle support. The design was influenced by Arai's F-1 drivers, the most demanding of all for fit. Emergency Cheekpad Release System This now-copied groundbreaking Arai safety innovation was specifically developed to allow easier access to an injured rider by sliding out easily, making helmet removal easier for trained medical personnel Cheek Pad Adjustability A new cheek pad feature found only on Arai RX-Q and Signet-Q Helmets is a removable 5MM layer of foam. This allows more room if desired without having to purchase an entirely new cheek pad set ! OEM Sizing Information XS, SM, MD 30MM LG, XL, 2XL 25MM XXXL 20MM For Arai RX-Q Helmets, all cheek pads are interchangeable between the different helmet sizes. Remember, if you need more room in the helmet you need to order a smaller (thinner) cheek pad. To make a helmet tighter, you would need to buy a larger (thicker) cheek pad.