Ocean, lake, tributary, or everywhere between; wherever there are adventures to be had, take your Costa Del Mar Double Haul Polarized Sunglasses, and look good doing it. Experience the unmatched optical clarity of Costa's top-shelf, seaworthy 580G glass lens, matched with a tough, nylon frame worthy of a lifetime of landlubber use too. 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.