Micro side shields; Hooding; Vented nose pads; Double injection; Costa 580 lenses were designed by in-house light spectrum experts to enhance colors because standard sunglass lenses fell short; Absorbing Harmful High-Energy Blue Light (HEV); Enhancing Reds, Greens, and Blues; Filtering Out Harsh Yellow; Glass Provides The Best Clarity In Material; Encapsulated Mirrors (Between Layers Of Glass) Are Scratch-Proof