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Ray-Ban - RB4451 - Sunglasses

✓ Authorised UK stockist Rated 4.6★ by 1774 customers

Ray-Ban

Regular price £164.20
Regular price £273.67 Sale price £164.20
Save £109.47
Hot Deal Sold out
Free UK delivery 5–8 business days

Prescription lenses are made to order — please allow a few extra business days in addition to standard delivery (5–8 business days).

Taxes included. Shipping calculated at checkout.

Price includes VAT. Free UK delivery in 5–8 business days.

Colour: Black
Lens Width: 50 MM
How to choose

Lens width is the width of one lens, in millimetres. Match the three numbers printed inside the arm of your current glasses to find your size.

Availability is shown per colour — sizes crossed out are sold out in the colour you've picked, so they can't be selected.

Lens width diagram
Lens Size:
50 MM
Bridge size diagram
Bridge Size:
20 MM
Temple length diagram
Temple length:
145 MM
Quantity
Buying with prescription lenses? Pick your frame now — lens options come next. Have your prescription details handy, or simply choose Email later at the lens step. Lens prices are shown before you commit; nothing is charged until you confirm.

Black Friday Lens Offer · Use code at checkout

30% or more off RRPon selected prescription lenses+ extra 10% with code LENS10

Explore Ray-Ban Authentic prescription lenses. See your total at every step.

ARDOR
Your prescription is checked before your lenses are made.

Selections continue to the next step automatically. Use Back or Edit to change a choice.

Running total
Prices include VAT. Delivery calculated at checkout.

Standard non-prescription lenses included. Lens colour and features are as described for your selected option. Need vision correction? Choose the prescription option above.

Out of stock — get an email when it's back

100% Authentic Direct from authorised distributors
Free UK Delivery Dispatched in 1–2 business days, delivered within 5–8 business days
48-Hour Guaranteed Delivery Delivered within 48 hours — Express £4.95 at checkout
14-Day Returns 14-day frame returns; custom prescription lenses are non-refundable. Return policy
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RB4451 (Ray-Ban) is selling:
Fast! Last few pairs left of these 100% original designer eyewear. Buy Now Before the Deal Ends Forever!

100% genuine, supplied by authorised distributors. 14-day returns and a 2-year warranty on every pair.

  • Free UK Delivery
  • 14-Day Returns
  • 2-Year Warranty
Stock Level: Only a few left!

Description

The Ray-Ban RB4451 is a unisex full-rim sunglass with a geometric front, offered in two lens widths and a varied palette of frame finishes, including options with green, dark grey and polarised green lenses.

Frame design and materials

The RB4451 is built as a full-rim frame with a geometric shape and is designed for both men and women. The front is made of nylon, while the temples are metal — a combination that gives the frame its distinct look and finish.

Adjustable nosepads let you fine-tune how the frame sits, so you can position it comfortably on the bridge of your nose without changing the frame itself.

Sizes and fit

Two lens widths are offered: 50 mm and 53 mm. The listed measurements — a 50 mm lens width, 20 mm bridge, 145 mm temples and a 44 mm lens height — correspond to the 50 mm size, so expect the 53 mm version to be proportioned differently.

The most reliable way to judge fit is to measure the same dimensions on a pair of sunglasses you already wear well. Remember that bridge size, temple length and lens dimensions are separate measurements: a comfortable bridge does not guarantee the temples or lens height will suit you, and lens width alone does not settle the question either.

Colours and lens options

Frame finishes include Black and four translucent options — Transparent Beige, Transparent Blue, Transparent Grey and Transparent Orange. Beyond these, the range covers versions with green lenses, a dark grey lens option, and a green polarised option.

Each of the five standard finishes can be selected in both 50 mm and 53 mm widths. The green-lensed version (630631) is offered in 50 mm only, the dark grey option (601/B1) in 53 mm only, and the polarised green version (630658) in both widths — choose from the options shown when ordering to confirm the combination you want.

Prescriptions and delivery

Eligible prescription sun lenses are available as an optional add-on for this model. They are not the standard lenses supplied with the frame, and ordering them does not change the price of the frame itself.

Standard, non-prescription orders are delivered within 5–8 business days. Prescription orders can take a few additional business days while the lenses are made and fitted. If you need help choosing a size or colour, contact Ardor Eyewear before ordering.

Product Specifications

Model Code: RB4451
Brand: Ray-Ban
Product Type: Sunglasses
Barcode 8056262415603
Gender: Unisex
Theme: Core
Suits These Face Shapes: Round Face, Square Face, Oval Face, Heart Face, Diamond Face, Long Face

Frame Specifications

Frame Shape: Irregular
Front Material: Nylon
Frame Front Colour: Black
Front Colour (detailed): Black
Frame Temple Material: Metal

Lens Specifications

Lens Color: Dark Grey
Lens Material: Crystal
Lens Base Curve: Base 4.25

Size & Fit Details

Lens Width: 50 MM
Lens Height: 44 MM
Bridge Size: 20 MM
Temple Length: 145 MM
Size Guide: L
Geofit: Adjustable Nosepads

Ray-Ban Packaging

Ray-Ban Packaging

*The packaging image is for reference purposes only; actual packaging may differ.

Estimated dates below are for non-prescription frames. Prescription lenses are made to order — please allow a few extra business days.

Order placed Ordered 15 Nov
Order prepared Dispatched 16 Nov - 17th Nov
Out for delivery Delivered 20 Nov - 25 Nov
Order placed Ordered 15 Nov
Order prepared Packed 16 Nov
Delivered within 48 hours Delivered By 18 Nov

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Proudly UK

Based in Britain. Shipped from Britain.

We're a UK business and your eyewear ships from our UK warehouse — so it reaches you fast, without the long waits and customs delays that come with cheaper sellers shipping from the EU.

  • Ships from our UK warehouseDispatched fast from within the UK — no waiting weeks on an overseas parcel.
  • No EU customs delays or surprise chargesYour eyewear is already here in the UK, so there's nothing to clear and nothing extra to pay.
  • UK-based supportReal people in your time zone, ready to help before and after you buy.

As Seen On You

Real customers, real style

Designer Eyewear, Done Right.

Authorized UK retailer of Ray-Ban, Oakley, Gucci, Tom Ford, Persol, Saint Laurent and 25+ more. Every pair guaranteed authentic, dispatched from our Derby HQ with free UK delivery, 14-day returns and a 2-year warranty — prescription orders included.

100% Authentic. Direct from authorized brand partners.

Every Ray-Ban, Oakley, Tom Ford, Gucci and Persol you'll find here is sourced through our authorized partnerships — never resellers, never grey market. Each pair arrives in its original branded case with manufacturer documentation, ready to verify on the brand's official website.

Pair it with Carl Zeiss or Essilor prescription lenses, fitted in-house by qualified opticians — with anti-reflective, blue-light, photochromic or polarized upgrades to suit how you wear them.

Frames Picked For Your Face — Not Just Your Style

Not sure where to start? Our Shop by Face Shape collection groups frames by what genuinely flatters — round, oval, square, heart and oblong — so you're already shortlisted to what suits you.

Each frame is hand-curated by UK optical specialists who've fitted thousands of customers. Need help picking? Our face-shape guide walks you through it in under a minute — no email or signup required.

  • 5 stars: 2 (33%)
  • 4 stars: 1 (17%)
  • 3 stars: 1 (17%)
  • 2 stars: 1 (17%)
  • 1 star: 1 (17%)
S
Stuart

Sunglasses fine customer service zero

D
Duncan Pointon

Great glasses at a great price with great service!

A
Anonymous

The glasses miniature screw fell out within days of use and i am truly unsure if these are real.

R
Robert Green

Good service and price for the sunglasses, plus they look really nice. Not the most practical pair though, since the flat lenses and transparent frame let in quite a bit of unfiltered light. This results in lots of purple glare from the anti-reflection coating on the inside of the lenses and actually makes it more difficult to see well than it should do

N
Neil Evans

They are tidy, thanks

B
Becca

Lovely style however the shade isn’t as good as my previous pairs of Ray Bans.The sun still appears uncomfortably bright through these.