KoolShades NB200. Brand New Polarized KoolShades NB200 Sunglass. KoolShades (CoolShades) is a Registered Trademark. Gunmetal frame with Optical Quality Spring Hinges and Grey Polarized Lenses. Great Value sunglass. It comes in a FREE SunglassSales.com Micro Fiber Cleaning Cloth storage bag. A $9.95 Value. 100% Purchase Price Money back guarantee. Always!