Authorized Black Flys Dealer Black Flys Skater Fly Sunglasses - Shiny Black - Smoke Polarized Jay Adams Signature Frame, large fitting wrap. Polarized styles have shatter resistant polycarbonate lenses that offer maximum glare reduction and ultimate clarity. Black Flys nylon frames are constructed around a wire core, keeping the shape consistent in extreme conditions. They are injected of the highest quality nylon available and feature optical quality polycarbonate lenses.