For some helmet models, Airoh provides Pinlock lenses inside the helmet (included in the purchase price) or as an aftermarket accessory. What are they? This product, devised and marketed by the Dutch company it takes the name from, comprises a hydrophobic coating with a silicon edging to prevent fogging, as it creates a sort of inner tube once placed inside the main visor. Silicone allows for perfect adhesion of the main visor while ensuring stability and preventing the infiltration of dust and water. This system creates a vacuum chamber that prevents condensation from forming because of the difference in temperature between the inside and the outside of our helmet, especially during the colder months.