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Original Ray-Ban RB4374 Replacement Lenses

Price range: $17.99 through $30.99

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

color

31 - GREEN - CRYSTAL

33 - BROWN UNIFORM - CRYSTAL

48 - BLACK POLARIZED - CRYSTAL

M2 - BROWN GRADIENT POLARIZED - CRYSTAL

M3 - GRAY BLUE GRADIENT POLARIZED - CRYSTAL

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Description
Additional information

Description

Original Ray-Ban RB4374 replacement lenses

If your Ray-Ban RB4374 lenses are scratched, cracked or no longer give you the clean vision you expect, replacing the lenses is the smart way to bring your sunglasses back to life. These original Ray-Ban replacement lenses restore the factory look and optical performance while helping you save up to 60% compared with buying a new pair. Free shipping is included.

Model compatibility

These lenses are made for the Ray-Ban RB4374, size 56. As original Ray-Ban lenses, they follow the correct lens shape, Base 6 curve and fitting geometry required for this frame.

They are not universal lenses. Similar-looking Ray-Ban frames may use a different contour, so the exact RB4374 model reference is essential.

How to identify your model and size

Check the inside of the temple arm. You should see the model code RB4374 followed by other numbers, including the size 56. For compatibility, the key information is RB4374 and size 56.

Measuring a broken lens with a ruler is not the safest method, because the visible width does not always match the precise mounting contour.

Main features

Brand: Ray-Ban
Compatible model: RB4374
Size: 56
Stated diameter: 60mm
Shape: square
Lens material: glass
Lens curve: Base 6
Use: sunglasses
User: adult
Product type: original

Available colors

31 – Green – Glass
33 – Brown uniform – Glass
48 – Black polarized – Glass
M2 – Brown gradient polarized – Glass
M3 – Gray blue gradient polarized – Glass

Material, protection and lens options

These lenses are made from glass, a premium Ray-Ban material known for clear optics and strong scratch resistance. They provide UV400 protection, blocking 100% of UVA and UVB rays.

Polarized lens options are available only in the variants marked as polarized. Original polarized Ray-Ban lenses carry the Ray-Ban P identification.

Why replace only the lenses

Your RB4374 frame may still be in excellent condition even if the lenses are damaged. Replacing only the lenses is more sustainable, more cost-effective and keeps the original Ray-Ban frame you already like wearing.

At ReplacementLenses.net we specialize in original Ray-Ban lenses. Since 2018, we have helped repair more than 600,000 glasses and shipped over 400,000 orders to more than 50 countries.

Authenticity and logo

These are original Ray-Ban lenses and include the Ray-Ban logo. Polarized versions include the Ray-Ban P marking. We are an official EssilorLuxottica distributor.

In our own optical workshop in Granada, qualified opticians check lenses with a lensmeter before dispatch. We also work with professional MEI Easy Fit Trend equipment for precision optical work.

Frequently asked questions

Will these lenses fit any Ray-Ban RB4374?
They fit the Ray-Ban RB4374 in size 56. The frame color does not determine compatibility, but the model and size must match.

Will they fit a replica frame?
We cannot guarantee fitting on imitation frames. Original Ray-Ban lenses are cut for the exact channel and geometry of the genuine RB4374 frame.

Are these glass or plastic lenses?
These replacement lenses are glass. That gives excellent optical clarity and good scratch resistance.

Do they provide real sun protection?
Yes, they offer UV400 protection, blocking 100% of UVA and UVB rays. This is essential for safe sunglass use.

How do I confirm the correct size?
Look inside the temple for RB4374 and size 56. If those details match, you are choosing the correct replacement for this product.

Can I choose polarized lenses?
Yes, choose one of the variants clearly marked polarized: 48, M2 or M3. Original polarized Ray-Ban lenses include the Ray-Ban P logo.

Can I install them at home?
Many closed frames can be fitted with careful pressure, sometimes using gentle warmth to soften the frame. If you are unsure, we recommend professional installation by an optician.

Additional information

color	31 – GREEN – CRYSTAL , 33 – BROWN UNIFORM – CRYSTAL , 48 – BLACK POLARIZED – CRYSTAL , M2 – BROWN GRADIENT POLARIZED – CRYSTAL , M3 – GRAY BLUE GRADIENT POLARIZED – CRYSTAL
Size	56