Costa Del Mar Fathom sunglasses are specifically engineered for FISHING BOATING & other WATER SPORTS: the Fathom is designed w/WATER-REPELLENT POLARIZED lenses that eliminate water surface glare & ensure superb optical clarity. Wave 580 lenses REDUCE COLOR DISTORTION & yellow light. Costa Del Mar sunglasses provide 100% UV PROTECTION. Frame: Silver Lens: Polarized Copper Wave 580 Glass 60mm