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Original Ray-Ban RB4454 Flacko Replacement Lenses

Price range: $17.99 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

Size

color

31 - GREEN - CRYSTAL

48 - BLACK POLARIZED - CRYSTAL

51 - BROWN LIGHT GRADIENT- CRYSTAL

56 - BLUE - CRYSTAL

71 - GREY GRADIENT - CRYSTAL

B1 - DARK GREY - CRYSTAL

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Description
Additional information

Description

Restore your Ray-Ban RB4454 Flacko with original replacement lenses

Bring your Ray-Ban RB4454 Flacko sunglasses back to life with these 100% original replacement lenses. Manufactured and distributed by Ray-Ban/Luxottica, they guarantee authenticity, perfect fit, and premium optical quality. Each pair features the iconic RB logo, proof of genuine Ray-Ban craftsmanship.

Choose these official lenses to maintain the original look, comfort, and sun protection of your sunglasses. Designed for seamless integration, they ensure your Ray-Ban RB4454 Flacko frames perform and look as new.

Technical specifications and materials

Compatibility: Exclusively for Ray-Ban RB4454 Flacko
Shape: Rectangular
Sizes: 53 mm and 56 mm lens diameter (height: 37 mm and 39 mm respectively)
Original lens colors:
- 31 – Green (Crystal)
- 48 – Black Polarized (Crystal)
- 71 – Grey Gradient (Crystal)
- B1 – Dark Grey (Crystal)
- 56 – Blue (Crystal)
- 51 – Brown Light Gradient (Crystal)
Lens material: High-quality crystal (mineral glass), as per color reference
Original frame material: Acetate
Use: Sunglasses for adults
Product type: Pair of original Ray-Ban replacement lenses

How to check your model and exact size?

To ensure compatibility, follow these steps:

Find the model code inside the temple arm (should read “RB4454” or similar).
Check the size, indicated as a number next to the model (e.g., 53 or 56).
Look for the color code, which may appear after the size (e.g., 31, 48, 71, B1, 56, 51).
Confirm the shape and measurements match your sunglasses.

If unsure, compare your current lenses with the specifications above.

Frequently asked questions before buying your lenses

Are these identical to the lenses my sunglasses came with?

Yes, these are original Ray-Ban/Luxottica replacement lenses, made to official standards with the RB logo. Minor variations in color or material may occur due to official updates or production years.

What exactly is included in my order?

You will receive one pair of original Ray-Ban RB4454 Flacko lenses. Frame not included.

Are they guaranteed authentic?

Yes, all our replacement parts are genuine, supplied by Ray-Ban/Luxottica.

Explore our full range of original Ray-Ban replacement parts.

You can also browse all our original Ray-Ban lenses available for other models.

Additional information

Size	53 , 56
color	31 – GREEN – CRYSTAL , 48 – BLACK POLARIZED – CRYSTAL , 51 – BROWN LIGHT GRADIENT- CRYSTAL , 56 – BLUE – CRYSTAL , 71 – GREY GRADIENT – CRYSTAL , B1 – DARK GREY – CRYSTAL