The Overland Sunglasses by Proof Eyewear are all about keeping you cool, collected, and protected. With anti-reflective polarized lenses, your eyes stay protected from harmful rays and blinding glares from the sun, while the water and sweat-resistant finish maintains it's quality after years of usage. Handcrafted with recycled, natural, and sustainably sourced materials, these aluminum sunglasses are 100% recyclable to promote a friendly connection with the environment. 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.