"Ride Among Us" is not only Icon's slogan, it is their invitation to like-minded riders and motorcycle enthusiasts to share in Icon's motocentric lifestyle. The Icon Proshield™ Pinlock® Insert fits the ICON® Proshield™ Pinlock® ready shield made for the ICON Airframe™, Alliance™, and Alliance GT™ Helmets. Note: Requires Pinlock® ready face shield (sold separately). Fogging up is a thing of the past! The Pinlock® System is based on three basic principles, which work together like nothing else. Moisture absorbing material: Unlike the face shield, the Pinlock® insert lens is made of a soft and porous plastic. Material thickness: Because thicker material absorbs more moisture and offer more impact protection.