If you're setting out to catch big fish for the day, make sure you bring equally formidable eyewear to match. The Costa Del Mar Tuna Alley Mirrored Polarized Sunglasses feature highly impact- and scratch-resistant 580P lenses cut glare and boost clarity so you can spot the birds diving on feed fish, while the Hydrolite injected frames provide a non-slip hold and a comfortable fit. The mirrored lenses deflect more of that harsh glare that comes off the ocean, and the included cleaning cloth and hard case keep your shades fresh and safe at the end of the adventure. Proposition 65 Warning for California Consumers: This product contains chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm.