The Shark Pinlock Insert for Skwal / Spartan Helmets prevents visor fogging, ensuring a clear view in a range of weather conditions. It uses a double-glazing style system with a moisture-absorbing surface that stops condensation forming inside the visor.Here are the key features of this insert:Pinlock Technology: The insert uses a moisture-absorbing hydrophilic surface that actively captures and disperses water molecules before they condense, giving you a fog-free visor surface that helps you maintain consistent visibility in both cold and humid conditions.Precision Fit Design: Manufactured to match the visor shape of Shark Skwal and Spartan helmets, the insert locks securely into the integrated Pinlock pins, giving you a stable fit that prevents movement and ensures full coverage of the visor area.Optical Grade Material: Made from high-quality clear polymer, the insert maintains optical clarity without distortion, so you benefit from a natural field of vision that supports safe and ac