Name: Original Ray-Ban RB4368 Replacement Lenses
Brand: ReplacementLenses
SKU: 136
Availability: InStock

Original Ray-Ban RB4368 Replacement Lenses

Size chart

Clothing Size Conversion Chart
Category	US	EU	UK	Chest (in)	Waist (in)	Hips (in)
Men	XS	44	34	32-34	26-28	33-35
	S	46	36	34-36	28-30	35-37
	M	48	38	38-40	32-34	39-41
	L	50	40	42-44	36-38	43-45
	XL	52	42	46-48	40-42	47-49
Women	XS	32	6	31-32	24-25	33-34
	S	34	8	33-34	26-27	35-36
	M	36	10	35-36	28-29	37-38
	L	38-40	12-14	37-39	30-32	39-41
	XL	42	16	40-42	33-35	42-44
Youth	XS	128	7	26-28	23-24	26-28
	S	134	8	28-30	24-25	28-30
	M	140	10	30-32	25-26	30-32
	L	146	12	32-34	26-27	32-34
	XL	152	14	34-36	27-28	34-36

Pants Size Conversion Chart
Category	US	EU	UK	Waist (in)	Hip (in)	Inseam (in)
Men	28	44	28	28	34	30
	30	46	30	30	36	31
	32	48	32	32	38	32
	34	50	34	34	40	33
	36	52	36	36	42	34
Women	0	32	4	24	34	30
	2	34	6	25	35	30
	4	36	8	26	36	31
	6	38	10	27	38	32
	8	40	12	28	40	32

Shoes Size Conversion Chart
Category	US	EU	UK	Foot Length (in)
Men	6	39	5.5	9.25
	7	40	6.5	9.625
	8	41	7.5	10
	9	42	8.5	10.25
	10	43	9.5	10.625
	11	44	10.5	11
	12	45	11.5	11.25
	13	46	12.5	11.625
Women	5	35	2.5	8.5
	6	36	3.5	8.875
	7	37	4.5	9.25
	8	38	5.5	9.625
	9	39	6.5	10
	10	40	7.5	10.25
	11	41	8.5	10.625
	12	42	9.5	11
M (Unisex)	5	37	4.5	8.75
	6	38	5.5	9
	7	39	6.5	9.5
	8	40	7.5	10
	9	41	8.5	10.25
	10	42	9.5	10.625
	11	43	10.5	11
	12	44	11.5	11.25

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Original Ray-Ban RB4368 replacement lenses

If your Ray-Ban RB4368 frame is still in good condition but the lenses are scratched, worn or no longer comfortable to look through, replacing only the lenses is the smart choice. These original Ray-Ban RB4368 replacement lenses restore the look, sun protection and clarity of your sunglasses for far less than buying a new pair, with free shipping included.

At ReplacementLenses.net, we work from our own optical workshop in Granada with qualified opticians and a MEI Easy Fit Trend edging system. We are an official EssilorLuxottica distributor and check each lens with a lensmeter before dispatch.

Model compatibility

These lenses are made for the Ray-Ban RB4368 in size 51. Compatibility is not based only on the shape of the frame; the exact model code and lens size must match.

Ray-Ban models can look very similar from the outside, but a small difference in size or groove geometry can stop the lens from fitting properly. Always check your temple code before ordering.

How to identify your model and size

Look inside the temple arm of your sunglasses. You should find the model reference RB4368 and the size number 51, which identifies the lens calibre.

A typical Ray-Ban temple marking includes the model, frame colour code and size. For this product, the key information is RB4368 and 51. Choosing the wrong size, even by a small margin, may make the lens too loose or impossible to install.

Main features

Brand: Ray-Ban
Compatible model: RB4368
Size: 51
Lens diameter: 67 mm
Lens material: polycarbonate
Shape: square
Lens curve: Base 6
Use: sunglasses
Audience: adult
Product type: original
Temple material: nylon

Available colours

73 – Brown – Plastic
87 – Gray – Plastic
9A – Green polarized – Plastic
11 – Gray gradient – Plastic
71 – Dark green – Plastic
80 – Dark blue – Plastic
4L – Blue gradient – Plastic

Select the lens option by its original code whenever possible. This is the safest way to keep the factory look of your Ray-Ban RB4368.

Material, protection and lens finishes

These Ray-Ban RB4368 lenses are made from polycarbonate, a lightweight and resistant material widely used for everyday sunglasses. They provide UV400 protection, blocking 100% of UVA and UVB rays.

The available lens options include solid colours, gradient finishes and one polarized version: 9A – Green polarized – Plastic. If glare reduction is important for driving, water or bright surfaces, make sure you choose the option clearly marked as polarized.

Why replace only the lenses

If your frame is still comfortable and in good condition, replacing the lenses gives your Ray-Ban RB4368 a second life. It can save you up to 60% compared with buying new sunglasses and is a more sustainable way to keep using a frame you already own.

Since 2018, we have repaired more than 600,000 pairs of glasses and processed over 400,000 orders in more than 50 countries. That experience matters when you want original lenses to fit and perform properly.

Authenticity and logo

As original Ray-Ban lenses, they include the Ray-Ban logo; polarized lenses carry the Ray-Ban P marking. Being an official EssilorLuxottica distributor allows us to supply genuine replacement parts that preserve the identity and optical performance of your sunglasses.

You can also browse our full range of original Ray-Ban lenses. Every order is checked by qualified opticians in our workshop before shipping.

Frequently asked questions

Will these lenses fit any Ray-Ban RB4368 frame?

They are designed for Ray-Ban RB4368 size 51. Please confirm both the model code and size inside your temple arm before ordering.

Where do I find the size?

The size is usually printed or engraved inside the temple, near the model code. For this product, you need to see RB4368 and 51.

Can I choose polarized lenses if my original ones were not polarized?

Yes, provided you select a compatible lens option for the same model and size. In this listing, the polarized option is 9A – Green polarized – Plastic.

Are these genuine Ray-Ban lenses?

Yes, these are original Ray-Ban replacement lenses. Original lenses include the Ray-Ban logo, and polarized versions include Ray-Ban P.

Do they provide real sun protection?

Yes, they offer UV400 protection, blocking 100% UVA and UVB. That is essential for sunglasses intended for adult sun use.

Can I install them at home?

It is possible if you are used to handling sunglass frames carefully. If the frame feels too tight or you are unsure, a professional optician is the safest option.