Vision ChromaPop™ anti-fog lenses enhance contrast and natural color to make the details pop Cylindrical Carbonic-x anti-fog lens for clarity and impact resistance Open ventilation paths let the air flow to eliminate fog Provides 100% protection against UVA / UVB Fit / Integration Designed for ultimate integration with Smith helmets for maximum comfort, venting and storage convenience Ultra-wide silicone-backed strap stays put Absorbent face foam for a comfortable fit Medium / Large fit