Costa® Brine 580P Polarized Sunglasses are perfect for the enthusiastic outdoor adventurer. Whether you're on water or land, these sunglasses will help you tackle any obstacle in your path. The Brine 580P Sunglasses feature the clearest lenses on the planet. Featuring lightweight polycarbonate lenses, these powerful sunglasses provide 100% polarization and UV protection. True Costa 580® Technology blocks yellow light, boosts red and green light, and increases polarizing efficiency. The C-Wall® proprietary coating on these polycarbonate lenses powerfully repels water, oil, dust, and scratches to keep up with your fast-paced lifestyle. Their incredible impact resistance has been rigorously proven with ANSI Z80.3 and ANSI Z87.1 high impact/velocity testing. Hardy TR 90 nylon frames have integral hinges and Hydrolite® temples for a secure fit. These polarized sunglasses include a manufacturer's lifetime warranty and a hard case.