Is the RB4171 good for driving?

The grey gradient lens darkens the top of the view and lets more light through lower down, which helps you read the dashboard. At about 15% transmission it is dark enough for strong daylight.

Will it fit a wide face?

The hinge-to-hinge width is 132 mm and the frame is listed as a regular fit in size M. That suits average to slightly narrow faces better than very wide ones.

Does the high-bridge fit matter?

Yes. The key bridge and high-bridge fit are shaped for people whose nose bridge sits higher, so the frame rests without sliding down.

What lenses does it use?

Polycarbonate lenses with a hard coating, base 6 curve, and a grey gradient tint. They are not polarized.

How does it compare with the Wayfarer?

The RB4171 is lighter, with a rounded phantos shape and metal temples instead of the Wayfarer's thicker acetate frame. It reads as more casual and less boxy.