Originally developed for military applications, these lenses are cast molded with fog-inhibiting technology. Featuring the same tech used in fighter jet canopies and helicopter windshields, the Z87.1 impact rating delivers crisp strain-free vision that is exceptionally resistant to breaking and scratching. These features make the Trivex lens a go-to when it comes to the outdoors.
TR-90 is not only extremely lightweight, but it is also highly flexible. With a super strong chemical build, these frames feature a high flexiral fatigue strength. Meaning they are designed to flex over and over without fail. Highly resistant to stress and fatigue from flexing over time, these frames are less likely to wear out and crack. While most other frames are known to break down over time due to natural elements, the TR-90 frames are extremely resistant to UV rays and heat, so you know that they will be with you for the long haul.