Prescription Lenses for Ray-Ban 4640

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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Prescription Lenses for Ray-Ban 4640

Restore the timeless look of your Ray-Ban 4640 by simply replacing the prescription lenses-you don’t need to buy a new frame. These replacement prescription lenses for Ray-Ban are not manufactured by Ray-Ban, but are expertly crafted to fit the 4640 model, returning sharp vision and premium comfort for daily use. Configure your lenses with our online tool, choosing your prescription, lens treatments, and color options to match your needs-ideal for both prescription sunglasses and optical eyeglasses.

Compatibility of Prescription Lenses for Ray-Ban 4640

To ensure compatibility, check the inner temple of your glasses for the ‘4640’ model reference. Our lenses are crafted for the squared shape with 39 mm height, 53 mm diameter, and base curve 6, ensuring a precise fit for your original frame. Always make sure your frame matches the 4640 model before ordering.

Features of Prescription Lenses for Ray-Ban 4640

UV400 protection blocks harmful rays for optimal eye safety.
Lightweight CR39 lenses for everyday comfort.
Available in 1.5, 1.6, and 1.67 indexes to suit your prescription.
Impact-resistant material for durability and daily use.
Precisely shaped to fit Ray-Ban 4640 measurements.

How to Install Replacement Lenses

Easily replace the lenses at home by following the included instructions and carefully handling your frame. Apply gentle pressure to remove old lenses, then press the new ones evenly into place. For assistance, seek advice from your local optician.

Maintenance and Warranty

Clean your lenses using water and a microfiber cloth to keep them clear and scratch-free. We offer a 3-year warranty against manufacturing defects (this warranty does not cover scratches caused by normal use).