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All Ray-Ban replacement lenses →All original Ray-Ban lenses →

Ray-Ban · Ari

Original Ray-Ban RB3758 Ari lenses

Bring your Ari back to life with a pair of original Ray-Ban lenses, made for the RB3758 model and bearing the original logo.

Complete pair Original logo
$ 52.69 from · price per pair
Select the lens sizeChoose your lens size
Choose the color and coatingChoose a color
Optional
Your configurationOriginal lenses RB3758
$ 52.69 per pair
Model
Ray-Ban RB3758 Ari
Product
Original pair · with Ray-Ban logo
Choose the options to see availability
Quantity: 1 Total $ 52.69
Check the model and lens size. 54 and 56 mm lenses are not interchangeable. This pair is only for the Ray-Ban RB3758.
Before you choose

Find the right lens size for your RB3758

The inscription on the inside of the arm lets you confirm the model and exact lens measurement without visually comparing frames.

Inscription on the inside of the arm: RB3758 ··· 54□·· 145Example for guidance only. The position and order of the codes may vary depending on the frame.

How to read the inscription

In an inscription such as RB3758 ··· 54□·· 145, each part has a purpose:

RB3758ModelMust match this product.
···Frame colorIdentifies the finish of the frame front.
54Lens sizeThis is the size you need to select.
··BridgeThis is not the lens size.

This reference comes in 2 sizes. Find the number right before the □ symbol on your arm and choose that same lens size:

  • 54□ → 54 mm
  • 56□ → 56 mm

The number after the □ is the bridge: it isn't used to choose the lens. Can't read it? Measure your lens from side to side at its widest point; that measurement in millimeters matches the lens size.

Product and model

Ray-Ban RB3758 Ari

The RB3758 has a metal frame. This pair of original lenses keeps the geometry, beveling and fit designed for the model; you just need to confirm the exact reference and lens size.

Reference
RB3758
Name
Ari
Available lens sizes
54 and 56 mm
Identification
Original logo
Compatible frameMetal
Packaging1 pair
ManufacturingOriginal Ray-Ban
Product contents

What you'll receive with your order

1Original right lens with Ray-Ban logo
2Original left lens with RB engraving
3Selected color, coating and lens size
CristalesRepuesto technician checking a lens in the Granada workshop
Specialists since 2018Original product with specialist support
Why choose ReplacementLenses

Origin, compatibility and contents explained before you buy

We work with original replacement parts and help you confirm the model and lens size to reduce mistakes before we prepare your order.

EssilorLuxottica Ray-Ban Certified distributor
since 2018
Certified distributor

ReplacementLenses has been a certified EssilorLuxottica distributor since 2018.

Verifiable original

Ray-Ban pair with the original markings for the variant.

Guided compatibility

We explain where to find RB3758 and how to tell the 54 and 56 mm lens sizes apart.

3-year warranty

Coverage against manufacturing defects and after-sales support.

Installation guide

How to replace the lenses on your RB3758

The metal frame uses a rim closed with a screw. Work on a protected surface and avoid forcing the lens or bending the frame front.

Guide specific to the RB3758Step-by-step installation
ReplacementLenses · YouTube
More information

Everything about this replacement part for the Ray-Ban RB3758

Restore your Ray-Ban RB3758 with original replacement lenses

Bring your Ray-Ban RB3758 sunglasses back to life with these 100% original replacement lenses. Manufactured and distributed by Ray-Ban/Luxottica, they guarantee authenticity, perfect fit, and top optical quality. Each pair features the iconic RB logo, ensuring your frames retain their original value and style. If your lenses are scratched or damaged, this is the ideal solution to extend the life of your sunglasses and enjoy the sun protection and clarity Ray-Ban is known for.

Choose only original parts to maintain your sunglasses’ integrity. These lenses are designed exclusively for the RB3758 model, ensuring full compatibility and optimal visual experience. Avoid generic alternatives—only official Ray-Ban lenses guarantee the same manufacturing standards as your original sunglasses.

Technical specifications and materials

  • Compatibility: Exclusively for Ray-Ban RB3758.
  • Available sizes: 54 mm and 56 mm diameter. Lens height: 46 mm and 47 mm depending on size.
  • Lens material: Plastic (polycarbonate), depending on color variant.
  • Available lens colors:
    • 2 – Green
    • 6D – Yellow Mirror Flash Gold
    • 2V – Blue Polarized
    • 81 – Dark Grey
    • 84 – Pink
  • Lens shape: Square
  • Use: Sun protection (for adults)
  • Product type: Original Ray-Ban replacement, not generic or compatible

How to check your exact model and size

To ensure compatibility, follow these steps:

  • Find the model code (RB3758) on the inside of your Ray-Ban temple arm.
  • Check the size, usually indicated as a two-digit number (e.g., 54 or 56) next to the model code.
  • Look for the color code if you need a specific tint. This is usually listed after the size, separated by a dash or space.
  • Verify that the shape and measurements match your original lenses.

If unsure, consult the exact reference on your temple before ordering.

Frequently asked questions before buying your lenses

Are these identical to the lenses my sunglasses came with?

Yes, these are original Ray-Ban/Luxottica replacement lenses, made to the same standards as your factory lenses. There may be minor official updates in materials or tints depending on the variant and production year.

What exactly is included in my order?

Your order includes one pair of original Ray-Ban RB3758 lenses. The frame and other accessories are not included.

Are these guaranteed authentic?

We guarantee only original Ray-Ban replacement parts, with verified authenticity from the official manufacturer.

Explore our full range of original Ray-Ban replacement parts.

You can also browse all our original Ray-Ban lenses available for other models.

Original Ray-Ban RB3758 Replacement Lenses | Official Parts
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We answer your questions

FAQ

Is the price for one lens or for the pair?

The price is for a complete pair: original Ray-Ban right and left lenses.

Can I choose a different color from the original?

Yes. You can choose another available variant as long as you select the RB3758 model and the exact lens size of your frame.

How do I know if I need 54 or 56 mm?

Look for the reference on the inside of the arm. In an inscription such as RB3758 ··· 54□··, the number 54 is the lens size.

Are all colors available in all lens sizes?

Not necessarily. Final availability depends on the lens size and the color and coating combination: when you choose a lens size, you'll only see the colors that exist for it.

Do the polarized versions have a logo?

Yes. On polarized variants, the marking may appear as Ray-Ban P, in addition to the discreet RB engraving.

Will they fit another similar model?

No. Shape doesn't determine compatibility: these lenses are only for reference RB3758 and the lens size you choose.

Search by reference

Find your glasses' reference

Look on the inside of one of the temple arms. That's where you'll find the details needed to find the right replacement part.

Inside of a Ray-Ban temple arm showing reference RB2140, color 901, lens size 50, bridge 22 and arm length 150
RB2140Frame model
901Color code
50Lens size
22Bridge width
150Arm length
●

To find lenses: the model and lens size are usually enough. For arms: we also recommend checking the color and length.