Make an offer!! . In good condition see photos ❤️ . . Info below from website . Optimal usage Boating and fishing in deep water Open reflective water Harsh sun Costa 580® lenses Costa 580® lenses were designed by in-house light spectrum experts to enhance colors because standard sunglass lenses fell short. The lens' multipatented technology manages light by: Absorbing Harmful High-Energy Blue Light (HEV) Enhancing Reds, Greens, and Blues Filtering Out Harsh Yellow