Costa Del Mar Costa Hammerhead 580P Polarized Sunglasses -
If you've got the guts, you can swim with them, but we suggest you just kick back and relax while wearing them: Costa's Hammerhead 580P Polarized Sunglasseswith polycarbonate lenses. Ultra-tough, full-wrap style TR-90 nylon frames with stainless steel spring hinges make the Hammerheads right for any adventure.
Hammerhead 580P Sunglasses feature the clearest lenses on the planet. True 580 Technology blocks yellow light, boosts red and green light, and increases polarizing efficiency. The C-Wall proprietary coating 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. Featuring polycarbonate lenses that are lightweight and impact resistant, these powerful sunglasses provide 100% polarization and UV protection.
How to choose your Costa lenses: