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Maui Jim Piwai (Low Bridge Fit) MJ645 Replacement Lenses by Revant Optics

Maui Jim Piwai (Low Bridge Fit) MJ645 Replacement Lenses by Revant Optics

$44.99 /pair
$44.99/pair % Off
Sold out
  • Revant replacement lenses for sunglasses Polarized Stealth Black
  • Polarized Stealth Black replacement lenses true color
  • view tint looking through Polarized Stealth Black replacement lenses
  • A person wearing sunglasses with Polarized Stealth Black lenses installed in the frame
  • confirm you get the right lenses for the Maui Jim Piwai Low Bridge Fit MJ645
  • Revant Phillips screwdriver tool

Maui Jim Piwai (Low Bridge Fit) MJ645 Replacement Lenses by Revant Optics

Maui Jim Piwai (Low Bridge Fit) MJ645 Replacement Lenses by Revant Optics

$44.99 /pair
$44.99/pair % Off
Sold out
Lens Color: Stealth Black

Non-Mirrored Colors

Mirrored Colors +$5.00

Lens Type
Fits Frame Number MJ645
In stock – ships right away

Free US Shipping on Orders $50+

Free standard shipping in the USA on all orders over $50.

Live outside of the USA? See our international shipping options

For EU and UK customers: please see our International Compliance page

1 Year Warranty

When you buy a Revant product, you're backed by a 60-day no questions asked return or exchange policy and a 1-year warranty.
Read our full warranty

How to Install

Custom cut replacement lenses for any brand and frame of sunglasses

Don't want to install lenses yourself? Use our custom lens service.

Get Custom Lenses

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Replacement Lenses That Don't Feel Like Replacements

Polarized for the Win

Life can be polarizing, but polarized sunglasses aren't. They reduce glare so you see the good times better.

You Only Get One Set of Eyes

Our replacement lenses protect against 100% of those damaging UVA and UVB rays. No staring contests with the sun though.

Tough Enough for Spicy Stuff

We've put our lenses through all kinds of science-y tests and a few not so science-y ones too.

Revant Replacement Lenses for Stealth Black

Make your old Maui Jim Piwai (Low Bridge Fit) MJ645 lenses like new with our replacement lenses for Maui Jim sunglasses. These lenses perfectly fit Maui Jim Piwai (Low Bridge Fit) MJ645 sunglasses with the model number MJ645. And because our lenses meet or exceed the quality of your original Piwai (Low Bridge Fit) MJ645 lenses, you’ll get the same performance you’ve come to expect.

Our Stealth Black lenses cut glare and block 88% of visible light. Plus, a neutral tint means no weird purple shades from the 90s.

Other Features We Like to Nerd-Out About

  • Best for bright light (12% light transmission)
  • Neutral tint looking through the lens
  • Anti-scratch protective coating
  • Lens material: optical polycarbonate

Comes With

  • 1 pair of replacement lenses (left & right) for your Maui Jim Piwai (Low Bridge Fit) MJ645 sunglasses
  • Protective microfiber bag for storage and cleaning
  • Maui Jim Piwai Low Bridge Fit MJ645 lens care instructions
  • Note: sunglass frame not included

Better Performance.
Half the Price.

Revant logo
Revant
Lenses
Starting at
$24.99
Polarized Available
UV Protection
Impact Resistant
Optically Corrected
Anti-Reflective Available
60-Day Trial
Maui Jim
Lenses
Starting at
$75.00
Polarized Available
UV Protection
Impact Resistant
Optically Corrected
New Maui Jim
Sunglasses
Starting at
$199.00
Polarized Available
UV Protection
Impact Resistant
Optically Corrected

Do I Really Need Polarized Sunglasses?

Polarization cuts glare, increases visibility, and lets you see underwater. In short, it helps you do the things you love better. And once you’ve taken that hairpin without getting blinded or looked a fish straight in the eye, you’ll never go back.

Unmatched Quality

We don’t know everything, but we know lenses. The last ten years have been all about testing, testing, testing. Every single material, coating, and manufacturing method has been evaluated. Only the best are used for our lenses.

  • High Impact Resistance
  • Polarized to Block Glare
  • 100% UV Protection
About Our Testing
Find replacement lenses for any activity

A Color for Every Activity

It makes a difference and there are a lot of them. So we put together a short quiz to help you decide.

Questions About Replacing Your Maui Jim Piwai (Low Bridge Fit) MJ645 Lenses?

Can I replace the lenses in my sunglasses?

Yes, most name-brand sunglasses have lenses that can be replaced. Revant lenses are custom-cut for specific frame models and include installation instructions. In most cases, you can replace the lenses at home in under two minutes.

How do I know if Revant lenses will fit my frame?

Check the model name or number printed on the inside temple of your sunglasses. Revant lenses are made for exact frame models, not just similar styles. If the model on your frame matches the one listed on our product page, you’ll get a perfect fit.

If you're unsure or don't see a model name or number, contact us and we can help make sure you get the right lenses for your sunglasses.

What’s the difference between Revant lenses and my original lenses?

Revant lenses are aftermarket, not OEM, but they’re engineered to meet or exceed the performance of original lenses. Each lens is traced from the original frame model using high-precision digital scanners that capture its unique curvature and edge geometry down to fractions of a millimeter. That means you get a lens cut to fit your frame exactly. No guesswork, no gaps, and no rattle.

Beyond fit, Revant lenses are tested for optical clarity, impact resistance, and durability. We also offer upgrades like polarization, MirrorShield® tints, anti-reflective coatings, and hydrophobic layers that go beyond what many stock lenses provide.