The STADIUM is one of the most popular models from AMERICAN OPTICAL. Its shape is the so-called Wellington type, and the thin gray and clear two-tone color gives it a cool, understated vibe. It's a versatile piece that can be paired with various styles, from masculine outfits and vintage clothing to more refined looks. It's likely from the 1950s to 1960s. I purchased it as deadstock and have used it a few times after fitting it with gray-tinted lenses. *As shown in the fifth image, there is a small scratch. Please be aware of this.*