Replace Your Lenses (customer provided frame

It uses 555nm lens and then adds a reflective blue coating that blocks more light

Please email FlightSunglasses@gmail

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It also has a saddle-style

Serengeti Spello Single Vision Prescription Frame Color:Shiny Gunmetal/Black/Gray Replace Your Lenses (customer providedSERENGETI SPELLO SINGLE VISION PRESCRIPTION Spello is a navigator shape model, features double injected rubber temples mixing hard rubber on the external side for a sporty look and softer rubber on the inside to maximize comfort. Bright colors inside the temples subtly spice up this timeless design. The wire core inside the temples allows easy adjustment, providing a customized fit. Fit: Medium to Medium Small Gender: Both SPECIFICATIONS Polarized: