You can find all the replacement parts you need at Escapa.
Eassun Challenge Photochromic Replacement Lens
The Eassun Challenge replacement lens is photochromic (CAT 0-2). Ideal for situations where UV rays have a moderate impact. Additionally, its design stands out for being: anti-fog, preventing fog from forming, and water-repellent, as water droplets slide right off the entire surface.
