Description
Description
Introducing the Michael Kors MK4140U Bierzo square frame in a full rim silhouette, this eyewear embodies refined urban luxury. The front presents a sleek black injected surface, paired with elegant metal temples for a contemporary contrast that catches the eye. With a 54mm lens width and a 17mm bridge, the frame projects confident presence while remaining wearable from desk to dusk. As a guaranteed authentic piece from Ardor Eyewear, it arrives in official packaging and is ready to be tailored to your prescription needs.
Crafted to accommodate prescription lenses with standard Base 4 curvature, the MK4140U Bierzo blends injection technology with refined metal detail. The lightweight front and sturdy temples combine durability with comfort, ensuring a secure, all-day fit. This is designer eyewear at its finest, where meticulous craftsmanship meets modern glamour.
Fit and comfort are central. The frame’s dimensions — 54mm eye size, 43mm lens height, and 140mm temple length — deliver balance across most face shapes. The Universal Geofit ensures effortless wear, while the timeless black surface coordinates with everything from tailored suiting to sleek streetwear.
Face shape guidance: this square frame tends to flatter oval and round faces by adding gentle structure. Those with square features may enjoy the frame’s architectural lines, and heart-shaped faces can lean into a bold brow-line look when paired with complementary lens shapes.
With Ardor Eyewear, you purchase genuine luxury with a seamless online experience. You can choose the frame only or add prescription lenses and we will expertly fit your lenses and ship within 8–12 days. Benefit from authentic packaging, clear tracking, and premium service that makes prescription lenses and easy ordering feel effortless.
Product Specifications
Product Specifications
| Model Code: | MK4140U - Bierzo |
| Brand: | Michael Kors |
| Product Type: | Glasses |
| Barcode | 725125524407 |
| Gender: | Women |
| Model Name: | Bierzo |
| Theme: | Glamour |
| Suits These Face Shapes: | Round Face, Oval Face, Long Face, Narrow Face |
Frame Specifications
Frame Specifications
| Frame Shape: | Square |
| Front Material: | Injected |
| Frame Front Colour: | Black |
| Front Colour (detailed): | Black |
| Frame Temple Material: | Metal |
Lens Specifications
Lens Specifications
| Lens Color: | Demo Lens |
| Lens Base Curve: | Base 4 |
Size & Fit Details
Size & Fit Details
| Lens Width: | 54 MM |
| Lens Height: | 43 MM |
| Bridge Size: | 17 MM |
| Temple Length: | 140 MM |
| Size Guide: | M |
| Geofit: | Universal Fit |
Michael Kors Packaging
Michael Kors Packaging

*The packaging image is for reference purposes only; actual packaging may differ.
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- Designer Eyewear Under 150
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- £100 - £250 Eyeglasses
Have any questions?
Michael Kors - MK4140U - Bierzo - Glasses
Michael Kors
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MK4140U - Bierzo (Michael Kors) is selling:
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Description
Description
Introducing the Michael Kors MK4140U Bierzo square frame in a full rim silhouette, this eyewear embodies refined urban luxury. The front presents a sleek black injected surface, paired with elegant metal temples for a contemporary contrast that catches the eye. With a 54mm lens width and a 17mm bridge, the frame projects confident presence while remaining wearable from desk to dusk. As a guaranteed authentic piece from Ardor Eyewear, it arrives in official packaging and is ready to be tailored to your prescription needs.
Crafted to accommodate prescription lenses with standard Base 4 curvature, the MK4140U Bierzo blends injection technology with refined metal detail. The lightweight front and sturdy temples combine durability with comfort, ensuring a secure, all-day fit. This is designer eyewear at its finest, where meticulous craftsmanship meets modern glamour.
Fit and comfort are central. The frame’s dimensions — 54mm eye size, 43mm lens height, and 140mm temple length — deliver balance across most face shapes. The Universal Geofit ensures effortless wear, while the timeless black surface coordinates with everything from tailored suiting to sleek streetwear.
Face shape guidance: this square frame tends to flatter oval and round faces by adding gentle structure. Those with square features may enjoy the frame’s architectural lines, and heart-shaped faces can lean into a bold brow-line look when paired with complementary lens shapes.
With Ardor Eyewear, you purchase genuine luxury with a seamless online experience. You can choose the frame only or add prescription lenses and we will expertly fit your lenses and ship within 8–12 days. Benefit from authentic packaging, clear tracking, and premium service that makes prescription lenses and easy ordering feel effortless.
Product Specifications
Product Specifications
| Model Code: | MK4140U - Bierzo |
| Brand: | Michael Kors |
| Product Type: | Glasses |
| Barcode | 725125524407 |
| Gender: | Women |
| Model Name: | Bierzo |
| Theme: | Glamour |
| Suits These Face Shapes: | Round Face, Oval Face, Long Face, Narrow Face |
Frame Specifications
Frame Specifications
| Frame Shape: | Square |
| Front Material: | Injected |
| Frame Front Colour: | Black |
| Front Colour (detailed): | Black |
| Frame Temple Material: | Metal |
Lens Specifications
Lens Specifications
| Lens Color: | Demo Lens |
| Lens Base Curve: | Base 4 |
Size & Fit Details
Size & Fit Details
| Lens Width: | 54 MM |
| Lens Height: | 43 MM |
| Bridge Size: | 17 MM |
| Temple Length: | 140 MM |
| Size Guide: | M |
| Geofit: | Universal Fit |
Michael Kors Packaging
Michael Kors Packaging

*The packaging image is for reference purposes only; actual packaging may differ.
Related Collections
Related Collections
- All Collections
- Black Colour Glasses
- Designer Eyeglasses UK
- Designer Eyewear Under 150
- Everything
- Eyesight Glasses Frames
- Glasses
- Heart Face Glasses
- Medium Size Glasses
- Michael Kors Glasses
- Reading Glasses
- Sunglasses For Womens
- Varifocal Glasses
- Women Heart Face Glasses
- Women Long Face Glasses
- Women Narrow Face Glasses
- Women Oval Face Glasses
- Women Prescription Glasses Frames
- Women Reading Glasses
- Women Round Face Glasses
- £100 - £250 Eyeglasses
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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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