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Original Ray-Ban RB3690 Replacement Lenses

Price range: $18.99 through $26.99

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

AN - BROWN POLARIZED - CRYSTAL

B1 - DARK GREY - CRYSTAL

K8 - DARK GREY POLARIZED - CRYSTAL

Size

Clear

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Description
Additional information

Description

Original Ray-Ban RB3690 replacement lenses

Bring your Ray-Ban RB3690 back to life without buying a new pair of sunglasses. These original Ray-Ban replacement lenses preserve the look, optical quality and sun protection of your frame, with free shipping and savings of up to 60% compared with replacing the full sunglasses.

Model compatibility

These lenses are made specifically for the Ray-Ban RB3690. Choose the correct lens size for your frame: even a small difference in millimetres can prevent a proper fit or leave the lens incorrectly seated.

How to identify your model and size

Check the inside of the temple arm for a reference such as “RB3690 54” or “RB3690 51”. RB3690 confirms the model, while the two-digit number is the lens size you need to order.

Main features

Brand: Ray-Ban
Compatible model: RB3690
Product type: original
Lens material: crystal glass
Shape: Pillow
Lens curve: Base 6
Use: sunglasses
Audience: adult
Available diameters: 54mm and 58mm

Available colours

31 – Green – Crystal
B1 – Dark grey – Crystal
AN – Brown polarized – Crystal
K8 – Polar dark grey – Crystal

Material, protection and lens options

These lenses are made from crystal glass, a premium material valued for visual clarity and scratch resistance. They provide UV400 protection, blocking 100% of UVA/UVB rays. AN and K8 are polarized lens options, ideal if you want to reduce glare when driving, near water or on bright reflective surfaces.

Why replace only the lenses

If your Ray-Ban RB3690 frame is still in good condition, replacing only the lenses is the smart choice. You restore the optical performance and appearance of your sunglasses while keeping a premium metal frame that already fits you perfectly.

Authenticity and logo

We are an official EssilorLuxottica distributor. As original Ray-Ban lenses, they include the Ray-Ban logo; polarized versions feature “Ray-Ban P”. In our optical workshop in Granada, qualified opticians check every lens with a lensmeter before dispatch.

Frequently asked questions

Are these lenses compatible with other Ray-Ban models? No. They are designed for the Ray-Ban RB3690 and must match the correct size of that frame.

How do I know whether I need size 54 or 51? Look inside the temple arm. The number printed after RB3690 is the lens size to select.

Can I upgrade to polarized lenses? Yes, if you select a polarized option available for RB3690, such as AN or K8. Fit depends on the frame size, not on whether the lens is polarized.

Are they glass or plastic lenses? These lenses are crystal glass. That gives a visual feel very close to the original Ray-Ban lens.

Do they protect against UV? Yes. They include UV400 protection, blocking 100% of UVA/UVB rays.

Can I install them at home? The RB3690 is a metal frame, usually opened with a small precision screw. If you are not used to handling eyewear, visit an optician to avoid scratching the lens or stressing the frame.

Additional information