Description
Description
Introducing the Saint Laurent SL 638 OPT cat-eye eyeglasses, a timeless statement in black. Crafted in Italy, this frame embodies precision, luxury eyewear and enduring elegance. The refined silhouette pairs smoothly with transparent lenses, creating a versatile, office-to-evening look for the discerning wearer.
Key measurements for the SL 638 OPT include a lens width 55 mm, bridge 18 mm, and temple length 140 mm. The front main material is RAC and the lens base is S04, combining durability with balanced optics for all-day comfort.
Face-shape guidance: Cat-eye frames are especially flattering on Round face, Oval face, and Heart-shaped profiles, lifting the brow and balancing proportion. They can also suit Diamond face and Narrow face silhouettes when proportion and sizing are tailored.
Prescription-ready: On Ardor Eyewear, you can buy the frame alone or opt for prescription-ready lenses. We fit and ship your customised lenses in just 8–12 days, with authentic packaging and expert adjustment included.
This elegant silhouette supports a modern, confident lifestyle—city meetings, after-work dining, and refined weekends. It is available in Black, Havana, and Nude, in a single size (55 mm), designed for women who seek understated luxury with superior comfort.
Product Specifications
Product Specifications
| Model Code: | SL 638 |
| Brand: | Saint Laurent |
| Product Type: | Glasses |
| Barcode | 889652453415 |
| Gender: | Women |
| Suits These Face Shapes: | Round Face, Oval Face, Heart Face, Diamond Face, Narrow Face |
Frame Specifications
Frame Specifications
| Frame Shape: | Cat Eye |
| Front Material: | RAC |
| Frame Front Colour: | Black |
| Front Colour (detailed): | Black |
Lens Specifications
Lens Specifications
| Lens Material: | Demo Lens |
| Lens Base Curve: | S04 |
| Polarized: | No |
| Photochromic: | No |
Size & Fit Details
Size & Fit Details
| Lens Width: | 55 MM |
| Lens Height: | 37 MM |
| Bridge Size: | 18 MM |
| Temple Length: | 140 MM |
| Size Guide: | L |
Saint Laurent Packaging
Saint Laurent Packaging

*The packaging image is for reference purposes only; actual packaging may differ.
Related Collections
Related Collections
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Saint Laurent - SL 638 - Glasses
Saint Laurent
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SL 638 (Saint Laurent) is selling:
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Description
Description
Introducing the Saint Laurent SL 638 OPT cat-eye eyeglasses, a timeless statement in black. Crafted in Italy, this frame embodies precision, luxury eyewear and enduring elegance. The refined silhouette pairs smoothly with transparent lenses, creating a versatile, office-to-evening look for the discerning wearer.
Key measurements for the SL 638 OPT include a lens width 55 mm, bridge 18 mm, and temple length 140 mm. The front main material is RAC and the lens base is S04, combining durability with balanced optics for all-day comfort.
Face-shape guidance: Cat-eye frames are especially flattering on Round face, Oval face, and Heart-shaped profiles, lifting the brow and balancing proportion. They can also suit Diamond face and Narrow face silhouettes when proportion and sizing are tailored.
Prescription-ready: On Ardor Eyewear, you can buy the frame alone or opt for prescription-ready lenses. We fit and ship your customised lenses in just 8–12 days, with authentic packaging and expert adjustment included.
This elegant silhouette supports a modern, confident lifestyle—city meetings, after-work dining, and refined weekends. It is available in Black, Havana, and Nude, in a single size (55 mm), designed for women who seek understated luxury with superior comfort.
Product Specifications
Product Specifications
| Model Code: | SL 638 |
| Brand: | Saint Laurent |
| Product Type: | Glasses |
| Barcode | 889652453415 |
| Gender: | Women |
| Suits These Face Shapes: | Round Face, Oval Face, Heart Face, Diamond Face, Narrow Face |
Frame Specifications
Frame Specifications
| Frame Shape: | Cat Eye |
| Front Material: | RAC |
| Frame Front Colour: | Black |
| Front Colour (detailed): | Black |
Lens Specifications
Lens Specifications
| Lens Material: | Demo Lens |
| Lens Base Curve: | S04 |
| Polarized: | No |
| Photochromic: | No |
Size & Fit Details
Size & Fit Details
| Lens Width: | 55 MM |
| Lens Height: | 37 MM |
| Bridge Size: | 18 MM |
| Temple Length: | 140 MM |
| Size Guide: | L |
Saint Laurent Packaging
Saint Laurent Packaging

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