Costa Del Mar Sunglasses - Riomar / Frame: Shiny Black Lens: Polarized Blue Mirror Wave 580 Glass - Costa Del Mar Sunglasses, style Riomar is an edgy and sporty Rx-able nylon wrap frame. The Riomar is designed with corrosion-resistant stainless steel hinges, adjustable wire core temples and special materials on the saddle nose bridge and temples to ensure comfort and minimize slippage. Featured on the temples is the Costa Del Mar logo. Ultra-thin polarized lenses eliminate water/ surface glare & ensure superb optical clarity. Costa Del Mar Sunglasses scratch-resistant glare reducing lenses always provide 100% UV PROTECTION.