• UPDATING A CLASSIC - The Frogskins style gets updated with color breaks and Unobtainium® components• LIGHTWEIGHT AND DURABLE - Manufactuered with BiO-Matter™ frame material made from bio-materials having at least 56% bio-based carbon content (representing ratio of castor oil to fossil sources)• NO-SLIP GRIP - Unobtainium® earsocks and nosepads help provide retention with a no-slip grip and all-day comfort• SEE MORE DETAILS - Available with Prizm™ lenses that are designed to enhance color, contrast so you can see more detail