Costa Del Mar Loreto Sunglasses Made in US Costa's 580 Polycarbonate provides high clarity, impact- and scratch-resistance along with lightweight all day wear-ability. Blue Mirror Polarized is best for bright, full-sun situations on the open water and offshore. Costa uses only the best in metals Monel is a super tough, corrosion-resistant alloy that provides a different look and feel. 100% polarization kills reflected glare and reduces eye strain. Built by hand and backed for life. Every pair of Costa Sunglasses includes a limited lifetime warranty. You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition. Go to Your Orders to start the return Print the return shipping label Ship it!