HJC DKS111 Clear Inner Anti-Fog Visor. Compatible with HJC IS17, C 70, FG-17 and FG-ST helmets. Can be used all year round under any weather condition. The Pinlock anti-fog visors have been created from a plastic capable of absorbing humidity. The silicone seal of the Pinlock visors create a hermetic, protective, double screen. The pins are centred, i.e., the axis of the button is situated in the centre. This allows the user to increase the tension in the visors by rotating the pin, giving the silicone seal a perfect fit with regards to the screen, especially prepared for Pinlock.