the best view with prizmâ„¢ lenses. the fall line l comes with a large fit and ridgelock technology, which allows you to change the lens quickly and easily, while a frameless design ensures maximum peripheral vision in every direction. the soft o-matter frame in combination with the 3-layer foam offers you absolute comfort and the best fit. prizmâ„¢ lens tech boosts colour and contrast, for optimal colour representation and clarity.prizmâ„¢ black iridium lensprizmâ„¢ lenses adapt to weather conditions and provides optimal colour representation while maximising depth perception and greatly improving visibility. the lenses are injection molded under extreme pressure with impact-resistant plutonite® to create a precise contour with optically correct geometry and clarity.