A Pinlock lens is made to enjoy a fog-free ride. It is based on two key principles to ensure fog-free vision. The moisture absorbing surface of the lens effectively attracts and stores water molecules, whilst the airtight seal creates a thermal barrier together preventing condensation of the visor. The system is kept in place by positioning the lens between two adjustable pins, making Pinlock the number one anti-fog solution for helmets.The Pinlock anti-fog technology seamlessly integrates into our helmets. The lenses are custom designed to fit our visors (excluding the Photochromic Transition visor).The original Pinlock lens. Two decades of fine tuning resulted in the perfect lens for daily commutes and weekend rides.Compatible with all AT4.0/3.0 visors (excluding Photochromic visors)