Costa Del Mar Harpoon Sunglasses Hand built and backed for life, Lens Material: 580Glass 100% UV protection and Polarized for superior clarity Patented Technology blocks blue and Yellow light for better clarity and color during fishing 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!