The Smith Frontier Goggles provide superior vision with a cylindrical Carbonic-x lens which is impact-resistant and features improved airflow. The Fog-X anti-fog inner lens ensures a fog-free performance, making it great for use in adverse weather. These goggles come with a dual-slide strap for easy size adjustment and ultra-wide silicone-backed strap so it stays in place. Single-layer compression-molded face foam provides a comfortable fit, and the Responsive Fit frame adjusts for a precise fit.