Zamp Z-24 Photochromatic Anti-Fog ShieldZ 24 Photochromatic Anti Fog Shield Z 24 Shield Replacement: Exclusively from Zamp Photochromatic Anti Fog Shields Go from bright to dark racing conditions without having to change shields! One shield works for Night or Day We do not recommend using Racing Optic Perimeter Seal Laminated tear offs on Coated Shield (including ALL Z 20 and Z 24 Prism Shields). They can have a reaction which can potentially damage the shield or shorten the longevity of