It's no coincidence that Flynn begins with the letters F-L-Y. Built off Original Pilot, a favorite of U.S. military pilots since 1958, Flynn adds a hand-crafted acetate insert that adds color around the eyes and functions as a side shield. Inspired by AO's turn-of-the-century driving goggles and mid-century safety glasses, it's the perfect balance of form and function. Please note that the frame is 57mm but the insert reduces the lens measurement to 55mm. // Lens color: Calobar Green / Lens material: AOLite Nylon Polarized / Temple: Standard temple style with teak acetate temple tips, designed for easy adjustments.