The Ray-Ban RB3506 takes a 64mm lens, one of the larger aftermarket sizes in this catalog, built for its oval plastic front and 135mm plastic arms. Oval fronts this size are less common than the square or round shapes that dominate the rest of the range, so double-check the 64mm figure against the lens you're replacing before ordering, since a smaller cut will sit loose in the channel.

Larger oval lenses like this one are usually chosen for broader glare coverage rather than for a fashion statement, which is why gradient and grey solid tints are the more practical picks over a full mirror — a 64mm mirrored lens throws a lot more reflection than a 55mm one does, and that extra surface area is also why the plastic front needs a full 135mm arm to balance it.

Frequently asked questions

Can I get polarized or mirrored lenses instead of the flat tint that came with my sunglasses?

Yes. Beyond the standard tint, we stock over 15 lens colours, including mirrored and polarized options for the 3506, so you can upgrade to polarized or mirrored glass in the same mm size your Ray-Ban frame already takes.

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

Every pair is matched to a specific model, in this case the 3506, 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.

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 mm 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 3506 never means sacrificing sun protection.