4D Mag S | Birds of Prey YGroup_Lowdown2 Light-sensitive photochromic lenses with ChromaPop™

Light-sensitive photochromic lenses with ChromaPop™ technology adapt to changing light conditions while enhancing contrast and natural color

Anti-reflective coating improves clarity and reduces eye strain (ChromaPop™ option only)

Microfiber cleaning and storage bag

They're compatible with the Rhythm MTB goggles and include two film canisters to keep you riding

4D Mag S | Birds of Prey YGroup_Lowdown2 Light-sensitive photochromic lenses with ChromaPop™Vision Smith MAG lens change system uses magnets for quick, easy lens changes ChromaPop lenses enhance contrast and natural color to make the details pop BirdsEye Vision clarifies not just your line, but the riders in your periphery Fit Integration Small fit; Available in Low Bridge Fit for faces with a lower nose bridge and or a wide or high cheekbone shape QuickFit strap adjustment system lets you find the right fit fast AirEvac ventilation system