Serengeti Bormio Progressive Prescription Frame Color:Satin Dark Tortoise Assembled with top quality Barberini

Assembled with top quality Barberini mineral crystal lenses

MODELS: BKBL

Reaching both ends of the color spectrum

Bridge 16mm Fit:  Medium

Shiny Gunmetal     Satin Rose Gold

Serengeti Bormio Progressive Prescription Frame Color:Satin Dark Tortoise Assembled with top quality BarberiniSERENGETI 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