Square lenses have four corners that need to align precisely with a metal frame's rim, and the RB3543's 58mm lens is cut to that specific corner geometry rather than a rounded approximation. Its 140mm temples are standard for the style.

This €25 set matches the RB3543's 58-140 metal-frame spec exactly, so it seats into the existing rim without the gaps that show up when a lens is sized for a different square model. It's a direct swap for whatever's scratched or discolored in the frame now.

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 58mm lens fails to seat correctly or the coating degrades on its own rather than from an impact, we'll replace it free.

Do replacement lenses block UV rays as well as the ones they're replacing?

Every lens we sell, including each option among the over 15 lens colours, including mirrored and polarized options, blocks 100% of UVA and UVB radiation, so changing the color or finish on your 3543 never means sacrificing sun protection.

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

Every pair is matched to a specific model, in this case the 3543, 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 58mm dimensions of the Ray-Ban 3543. They aren't produced or endorsed by Ray-Ban; they're engineered purely to fit that frame correctly.