The "0S2" is a product code used by specific brands (like FreshLook) to identify a particular style of color contact lens.

This code typically refers to a lens with a two-toned, limbal ring design. This means it features:

A darker outer ring (the limbal ring) that defines the edge of your iris, making your eyes appear larger, brighter, and more dramatic.

A lighter, patterned inner color that blends with your natural eye color to create a vibrant and noticeable change.