The base curve refers to the curvature of the lenses, which defines how much the frame wraps around your face. The higher the base curve, the larger curvature. Wiley X operates with base curve eight and base curve six, however we do have some models that has a base curve between and under these two values.

Base curve eight means that the eyewear has a large curvature and a high wrap fit, meaning that the eyewear will enclose your face to a greater extent, which also will ensure you better protection against light in your peripheral field of view.

Base curve six lenses that are less curved than eyewear with a base curve eight. They have a medium wrap fit, meaning that they do not enclose your face in the same way, but rather sit flatter against your face. This makes them fit more face types and sizes better.