100% Genuine
Skip to product information
1 of 6

Have any questions?

Michael Kors - MK4140U - Bierzo - Glasses

Michael Kors

Regular price £114.99
Regular price £184.99 Sale price £114.99
Save £70.00
Hot Deal Sold out
Taxes included. Shipping calculated at checkout.

VAT & Shipping Included in Deal Price

Colour
Size
Lens width diagram
Lens Size:
54 MM
Bridge size diagram
Bridge Size:
17 MM
Temple length diagram
Temple length:
140 MM
Quantity

MK4140U - Bierzo (Michael Kors) is selling:
Fast! Last few pairs left of these 100% original designer eyewear. Buy Now Before the Deal Ends Forever!

Proudly British: Authentic eyewear, fast UK delivery, easy returns. Shop with confidence!

  • Free Delivery (Save £8)
  • 14 Days Return
  • 2 Year Warranty
Stock Level: Only a few left!
Select Lens and Purchase

Frames ship with the standard non-prescription lenses shown in the images. No lens coatings or vision correction included — choose Add Prescription Lenses above to upgrade.

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

100% Authentic Direct from authorized distributors
94% Ship in 24h Guaranteed delivery in 5–8 business days
14-Day Returns Hassle-free, even with prescription lenses
Real Humans 24/7 email and live chat support
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Maestro
  • Mastercard
  • PayPal
  • Shop Pay
  • Union Pay
  • Visa

Description

Presented by Ardor Eyewear, the Michael Kors Bierzo MK4140U embodies authentic designer eyewear and contemporary luxury eyewear for women. This square frames, full-rim eyeglass exudes urban polish with a refined balance of form and function. The injected front delivers a lightweight, smooth silhouette, while the temples are crafted in metal for lasting strength and a premium hand-feel. Finished in Black with a Demo Lens to preview prescription vision, the Bierzo provides an exceptional base for prescription-ready customization. For those who value heritage, craftsmanship, and enduring style, this frame offers an elevated everyday signature.

Frame details: size 54, bridge 17, lens height 43, temple length 140, front material Injected, temple material Metal, lens base 4. The frame is universal fit, ensuring comfort across a range of face shapes. Its square frames silhouette paired with a full rim creates a modern, confident look that works seamlessly from meetings to evenings out.

Available colours and variations: this model is listed with the Bosco colour variant alongside the Black front option. The Bosco shade adds subtle nuance to the timeless silhouette, while maintaining the frame’s versatile appeal for both work and leisure.

Face shapes: guided by the frame geometry, this design flatters oval and heart-shaped faces most naturally, while those with round features may appreciate its defined angles, which add structure and balance to the overall profile.

Prescription-ready service: on Ardor’s product page you can choose frame only or frame with prescription lenses. We will fit your personalised lenses and ship your order in 8–12 days with authentic manufacturer packaging, backed by Ardor’s guarantee of genuine designer eyewear.

Product Specifications

Model Code: MK4140U - Bierzo
Brand: Michael Kors
Product Type: Glasses
Barcode 725125524551
Gender: Women
Model Name: Bierzo
Theme: Glamour
Suits These Face Shapes: Round Face, Oval Face, Long Face, Narrow Face

Frame Specifications

Frame Shape: Square
Front Material: Injected
Frame Front Colour: Green
Front Colour (detailed): Bosco
Frame Temple Material: Metal

Lens Specifications

Lens Color: Demo Lens
Lens Base Curve: Base 4

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

Order placed Ordered 9 Jun
Order prepared Order Ready 13 Jun - 15th Jun
Out for delivery Delivered 19 Jun - 22 Jun

Need Help?

Available: MON to FRI: 10:00AM - 05:00PM

Our Sleep Specialists are here for you.
View full details

Have any questions?

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.