Yes, they can!
All Wiley X lenses are made of the material Selenite™ polycarbonate. The material is extremely durable but also flexible, which it needs to be for it to pass the powerful ballistic and safety tests that we put our eyewear through. When a material is a bit flexible, it can also be scratched. To minimize this, we have treated our lenses with a T-shell™ anti-scratch coating, which adds protection to the lenses’ surface. In the end, this adds to the life expectancy of the eyewear.
To prevent the most scratches, see our recommendations regarding product care, which you can find under customer service.