Exclusively from Zamp... Photochromatic Shields Go from bright to dark racing conditions without having to change shields! The new Z-20 Photochromatic Shield smoothly transitions from clear to dark smoke (or vice versa) depending on the brightness of the track, without having to change the shield! One shield works for Night or Dayonly.
Fits zamp helmet only as listed .
Tear Off Note: If your tear offs are not allowing the photochromatic to work, it is because the tear off or adhesive is blocking the UV light. Z-Optics Tear Offs do not block UV light, allowing the photochromatic shields to work.
Recommended to use Z-optics tear offs for best performance .
