Is the RB4441D good for prescription lenses?

Yes. The frame is listed as compatible with prescription lenses, so an optician can fit your prescription into the brown lenses or into clear lenses for indoor use.

How does it compare with the Ray-Ban Wayfarer?

The RB4441D is an oval frame with a slimmer, more retro profile, while the Wayfarer is a thicker trapezoid shape. Both are full-frame plastic and UV-protective; the choice comes down to face shape and how bold you want the look.

What does bio-based mean on this frame?

Ray-Ban makes the frame from a plant-derived plastic rather than conventional petroleum-based acetate. It looks and wears like standard plastic but uses renewable feedstock.

Do the brown lenses block UV light?

Yes. The lenses are listed with UV protection, so they filter UV rays as well as reduce glare and brightness in daylight.

Will the oval shape suit a round face?

Oval frames tend to flatter square and angular faces most. On very round faces they can emphasize roundness, so try them on or check the frame width against a pair you already own.