Serengeti Bormio Progressive Prescription

SERENGETI BORMIO PROGRESSSIVE PRESCRIPTION Serengeti Bormio is light-weight and fits comfortable on your nose.  It uses 555nm lens and then adds a reflective blue coating that blocks more light.  This makes it idea for boating and water activities and enhances the lens' eye-protecting capabilities.  The Bormio lenses use Serengeti's light-weight Trivex lenses.   All Serengeti lenses offer the latest in photochromic technology, which constantly lightens and darkens throughout the day to ensure you see every detail. Check Out Our Youtube Review. Glass Prescription on Request (+$300)  Fit: Medium SPECIFICATIONS Polarized:  Yes Photochromic:  Yes Lens Color:  Polar PhD 555nm Blue Lens Material:  Trivex Frame:  Satin Black Nylon Base Curve:  8Rx Temple Length:  130mm Lens Size:  62 x 37 x 65mm, 15mm dbl Fit:  Medium  Frame Features: Grilamid TR90, Megol Nosepads