This aviator sunglass features a transition optical glass lens that reacts automatically to sunlight. The brighter the sun, the darker the lens becomes. On overcast days, the lens is a medium to light sunglass tint. Optical quality frame. New old stock. Never worn. Great condition. NOS Deadstock Made in China FIT INFORMATION 58mm Eye Size 17mm Bridge 145mm Temple/Arm Width 5 3/4 Inches Height 2 Inches