The RB4198 uses a plastic square front rather than metal, with a 55mm eye size and 140mm temples — this replacement lens pair is cut to that plastic-frame profile specifically, not the metal spec shared by some other square Ray-Ban models.

Available in TAC or polycarbonate, both are shaped to sit flush in the RB4198's plastic groove without the extra clearance a metal-frame lens would need.

Frequently asked questions

What's the warranty if a lens pops out or discolors after a few months?

All lenses are independently made and carry a 3-year warranty against manufacturing defects — if a 55mm lens fails to seat correctly or the coating degrades on its own rather than from an impact, we'll replace it free.

What if the lenses I order don't actually fit my frame?

Every pair is matched to a specific model, in this case the 4198, so mis-fits are uncommon, but if the lenses don't seat properly you can return them within 14 days for a full refund, no questions asked.

Are these genuine Ray-Ban or Oakley lenses?

No — these are aftermarket lenses, independently made to match the 55mm dimensions of the Ray-Ban 4198. They aren't produced or endorsed by Ray-Ban; they're engineered purely to fit that frame correctly.

How much does it cost to replace lenses instead of buying a new pair of sunglasses?

A pair of 55mm lenses for the 4198 starts at €25.00, a fraction of a new Ray-Ban frame, and shipping is free worldwide with no minimum order, so the total stays close to that price.