The Fox MTB Main Goggles Iron UNI are built for mountain bikers who want comfort and clarity when the trail gets rough. Designed to suit full-face and 3/4 shell MTB helmets, they feature a wide viewport to help you see more of whats coming. The Variable Lens System makes it easy to change lenses for different conditions, while triple-layer face foam with a fleece liner keeps things comfortable mile after mile. Finished with a non-slip silicone strap, these fox goggles stay secure so you can focus on your line and ride with confidence on every mountain.