Fit & Design: Oversized frame style for most or a perfect XL fit 580G Lightwave Glass lenses provide superior clarity and are scratch-resistant Encapsulated mirrors between layers of glass are scratch-proof 20% thinner and 22% lighter than average polarized glass Spring hinges for a secure fit Technology: Polarized lenses protect against UV rays and filter out unwanted glare Frames made from Costa Del Mar(R) castor plant bio-based resin. Sunglasses from the Costa Del Mar brand.. Ready to give it a try? Visit www.dickssportinggoods.com to learn more, explore additional product details, and check availability at a DICK'S Sporting Goods store near you. Place your order online for fast shipping or in-store pickup - DICK'S makes it simple to find exactly what you need..