Is the SL 569 Y good for small faces?

Probably not. The 63 mm lenses and oversized silhouette are built for medium to wide faces. On a narrow face the frame tends to slide and dominate the face.

How does it compare with a classic Ray-Ban aviator?

The SL 569 Y is larger and more fashion-forward, with a heavier metal frame. A classic aviator is lighter and more neutral, so it suits more face shapes.

Are the lenses polarized?

Most SL 569 Y versions ship with standard tinted lenses, not polarized ones. Check the lens marking on the specific colorway before buying if glare matters to you.

What comes in the box?

Saint Laurent typically includes a hard case and a cleaning cloth. Confirm the contents with the seller, since some listings ship the frame alone.

Is it worth it over a cheaper oversized aviator?

You pay for the Saint Laurent name and the bold silhouette. If you want the look and the label, it delivers; if you want light weight and value, cheaper metal aviators do the job.