Oakley Sunglasses. Series Flak 2.0 XL. Color code: 918816. Shape: Sunglasses. Lens Width: 59 mm. Lens Bridge: 12 mm. Arm Length: 133 mm. 100% UV protection. Non-Polarized. Frame Material: Plastic. Frame Color: Steel. Lenses Type: Clear to Black Photochromic. UPC/EAN code: 888392143563. Oakley Flak 2.0 XL Clear to Black Photochromic Sunglasses Men's Sunglasses OO9188-918816-59.