The Costa Del Mar Performance Rinconcito Sunglasses compress the beloved California-inspired aesthetic of its larger sibling into a versatile framework tailored for medium face profiles. This model balances a striking Matte Smoke Crystal frame made from plant-based bio-resins with elite Green Mirror 580 polarized lenses. Built on a high-contrast copper base, the multi-patented lens configuration absorbs harsh yellow wavelengths and harmful high-energy blue light to sharpen spatial depth perception. The rectangular frame architecture incorporates integral spring hinges for continuous structural flexibility alongside specialized Hydrolite rubber contact zones that hold their position against moisture and heavy movement. Engineered to maintain its precise shape through rugged tracking routines and beachside conditions, Costa secures these premium sunglasses with a limited lifetime manufacturer warranty. Costa Del Mar Rinconcito Men's Matte Smoke Crystal Frame Green Mirror Lens Sunglasses 06S9016-90163160