How to read the inscription
In an inscription such as RB4300 ··· 63□·· ···, each part has a purpose:
All Ray-Ban replacement lenses →All original Ray-Ban lenses →
Bring your Ray-Ban RB4300 glasses back to life with a pair of original lenses, made for this model and bearing the original logo.
The inscription on the inside of the arm lets you confirm the model and exact lens measurement without visually comparing frames.
In an inscription such as RB4300 ··· 63□·· ···, each part has a purpose:
Frame material of the RB4300: Injected. This pair of original lenses keeps the shape, thickness, beveling and fit designed for this frame; you just need to confirm that the reference and lens size match.
We work with original replacement parts and help you confirm the model and lens size to reduce mistakes before we prepare your order.
ReplacementLenses has been a certified EssilorLuxottica distributor since 2018.
Ray-Ban pair with the original markings for the variant.
We explain where to find RB4300 and how to tell the 63 mm lens sizes apart.
Coverage against manufacturing defects and after-sales support.
This model has a dedicated guide: follow the method shown in the video for your frame.
If your Ray-Ban RB4300 lenses are scratched, worn or no longer clear, you do not need to replace the whole frame. Fitting original Ray-Ban replacement lenses restores the look, comfort and UV protection of your sunglasses for far less than buying a new pair, with free shipping on qualifying orders.
These lenses are made for the Ray-Ban RB4300 model. They are designed to match the original lens shape and wrap of this frame, so they should not be used for replicas, lookalike frames or other Ray-Ban models, even if they appear similar.
Check the inside of the temple arm. You should find the RB4300 model reference and the lens size. This product is size 63, with a 69 mm lens diameter. If the markings have faded, measure the lens width carefully at home before ordering.
These Ray-Ban RB4300 lenses are made from polycarbonate, a lightweight material suitable for curved sunglass frames. The Base 9 curve is a key detail: using the wrong lens size or curve can put stress on the frame or prevent a secure fit.
Replacing the lenses lets you keep the frame that already fits your face while reducing waste. At ReplacementLenses.net, replacement lenses can cost less than buying a brand-new pair of sunglasses. You can also browse more original Ray-Ban lenses for other models.
As original Ray-Ban lenses, they include the Ray-Ban logo. We are an official EssilorLuxottica distributor, and every lens is checked by qualified opticians in our own workshop in Granada using a lensmeter. Since 2018, we have repaired more than 600,000 glasses and shipped over 400,000 orders to more than 50 countries.
Will these fit other Ray-Ban models? No. These replacement lenses are for the Ray-Ban RB4300 in size 63 and should not be forced into similar frames.
How can I confirm my sunglasses are RB4300? Look for RB4300 printed inside the temple arm. If the print is worn, measure the lens and compare the frame shape before ordering.
Can I install them in a replica frame? We do not recommend it. Non-original frames often have different tolerances, so the lenses may be too loose or too tight.
Are these polarized? A Ray-Ban lens should only be considered polarized when the selected variant is clearly marked as polarized. No polarized option is indicated in these product attributes.
Are they glass lenses? No. According to the product specifications, these RB4300 lenses are polycarbonate.
Is installation difficult? The RB4300 is a curved sunglass frame, so patience is important. If you are not used to fitting curved lenses, ask an optician to install them.

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The price is for a complete pair: original Ray-Ban right and left lenses.
Yes. You can choose another available variant as long as you select the RB4300 model and the exact lens size of your frame.
Yes. On polarized variants, the marking may appear as Ray-Ban P, in addition to the discreet RB engraving.
No. Shape doesn't determine compatibility: these lenses are only for reference RB4300 and the lens size you choose.
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