The Costa Del Mar Performance Bulley Bait Sunglasses combine lightweight bio-resin materials with premium structural performance designed specifically for avid anglers and outdoor enthusiasts. This specific variant features a durable, full-coverage Matte Tortoise XXL frame outfitted with Blue Mirror 580G polarized glass lenses optimized for maximum clarity in open, deep-water environments. Costa's multi-patented 580G Lightwave glass technology filters out harsh yellow light at the 580nm wavelength, heavily reducing eye strain while boosting visual contrast and color definition on the water. Built to last through demanding marine conditions, the high-performance frame utilizes robust construction elements paired with an ultra-scratch-resistant, oleophobic C-Wall molecular coating on the lenses. To offer complete reassurance for your investments on the water, Costa backs these premium lifestyle frames with a limited lifetime manufacturer warranty. Costa Del Mar Performance Bulley Bait Men's Matte Tortoise XXL Frame Blue Mirror 580G Polarized Lens Sunglasses 06S9139-91390564