Miu Miu Sunglasses MU A51S 5AK90Y75: A Rimless Frame in Gold and Infrared Pink
MU A51S 5AK90Y75: A Rimless Frame in Gold and Infrared Pink
A minimalist rimless rectangle in gold metal, finished with a gradient lens that shifts from pink to red to purple — Miu Miu's bold creativity, stripped of its own rim.
Take the rim away from a pair of sunglasses, and there's nowhere left for a frame to hide. The Miu Miu MU A51S in colorway 5AK90Y75 bets everything on that exposure — a rimless gold rectangle with nothing but the lens itself to carry the look, and a gradient tinted in shades of pink, red, and purple to make sure it does.
At Lexor Miami, an authorized Miu Miu dealer, this piece is currently in limited stock. Here's what makes a rimless frame harder to get right than it looks, and everything else worth knowing about this one.
The Miu Miu MU A51S 5AK90Y75 is a women's rimless rectangle sunglasses frame in gold metal, fitted with gradient Pink Infrared polyamide lenses that shift through shades of pink, red, and purple. It measures 75mm lens width, 14mm bridge, and 110mm temple length, and is made in Italy. It's $696 through authorized dealer Lexor Miami, with limited stock remaining.
Why Is Miu Miu Its Own Kind of Luxury Brand?
Founded in 1993 by Miuccia Prada and named after her own childhood nickname, Miu Miu was built to be Prada's more experimental, playful, and rebellious sister label — a house unafraid of color, contradiction, and rule-breaking where Prada leans toward restraint.
- Founded in 1993, named for Miuccia Prada's own childhood nickname
- Positioned as Prada's more avant-garde, experimental sister label
- Eyewear built around bold color and unconventional detailing from the start
- A house that treats "provocative" as a compliment, not a risk
Miu Miu eyewear immediately gained the attention of women craving colorful, provocative design not bound by any rules.
— Miu Miu
What Makes a Rimless Frame Harder to Pull Off?
Without a rim, every visual weight in a pair of sunglasses shifts onto the lens itself and the hardware holding it. The MU A51S handles that with a slim gold metal construction that reads as understated from a distance — until the gradient lens catches the light and does the rest of the talking.
The Pink Infrared Gradient
Named "Pink Infrared" for its color code 5AK90Y, the lens moves through pink, red, and purple in a single gradient — a genuinely unusual tint choice that few brands attempt on a rimless silhouette, where the lens has nowhere to hide behind acetate.
Part of Miu Miu's Fashion Show Line
The MU A51S belongs to Miu Miu's Fashion Show eyewear line, and it's offered across a range of colorways — from this gold-and-pink pairing to pale gold with light blue, and silver with a mirrored gradient — all sharing the same rimless rectangle silhouette.
Design
- Rimless rectangle silhouette in gold metal (stainless steel)
- Single bridge construction
- Gradient Pink Infrared polyamide lenses (pink to red to purple)
- Adjustable nose pads for a customizable fit
- Handmade in Italy
Fit
At 75mm lens width, 14mm bridge, and 110mm temple length, the MU A51S sits at a compact, narrow-profile scale compared to Miu Miu's more oversized shield styles — a rimless design built to feel light on the face, with adjustable nose pads to fine-tune the fit.
| Brand | Miu Miu |
|---|---|
| Model | MU A51S (0MU A51S) |
| Color Code | 5AK90Y75 |
| Frame Line | Fashion Show |
| Frame Shape | Rectangle, Rimless, Single Bridge |
| Frame Material | Metal (Stainless Steel) |
| Frame Color | Gold |
| Lens Color | Pink Infrared (Pink/Red/Purple Gradient) |
| Lens Material | Polyamide |
| Lens Width | 75 mm |
| Bridge Width | 14 mm |
| Temple Length | 110 mm |
| Gender | Women's |
| Country of Origin | Made in Italy |
| EAN | 8056262885734 |
| Lexor Miami Price | $696.00 |
Who Should Choose This Frame?
The MU A51S is a strong fit for:
- Anyone who wants a rimless frame with genuine color, not just clear or grey lenses
- Miu Miu collectors drawn to the Fashion Show line's rimless silhouettes
- Buyers who want a compact, lightweight-feeling frame over an oversized shield
- Those who prefer their statement piece to come from color rather than scale
Styling
- The gold and pink-red-purple gradient pairs naturally with warm neutrals and rose gold jewelry
- The compact rimless profile suits both daytime and evening wear
- A strong choice for anyone building out a colorful lens collection rather than another black pair
Why Buy the MU A51S from Lexor Miami?
At Lexor Miami, buying a Miu Miu like this is about more than the transaction.
In-Store Experience
- Try the frame on before you decide
- Guidance from a team with 20+ years as an authorized eyewear dealer
- A relaxed, pressure-free environment to compare frames
- 100% authentic, brand-new stock as an authorized Miu Miu dealer
Online Shopping Experience
- Every order includes the original case, cloth, and manufacturer paperwork
- Free shipping and secure checkout on U.S. orders
- A team reachable by phone, WhatsApp, or email before you buy
- Over 3,100 five-star Google reviews and 20+ years in business
Caring for Your MU A51S
- Store the frame in its dedicated case when not in use — rimless lenses are more exposed at the edges than a full-rim frame
- Clean lenses only with a soft lens cloth, never a paper towel or tissue
- Avoid leaving the frame on a car dashboard or near intense heat sources
- Handle the rimless lens edges gently, as they carry more of the frame's structural load than a rimmed design
Final Thoughts
The Miu Miu MU A51S 5AK90Y75 proves a rimless frame doesn't have to mean playing it safe. Between the gold metal construction and a gradient lens that genuinely shifts color across pink, red, and purple, it carries Miu Miu's rule-breaking spirit in a smaller, more wearable package than the house's bigger shield styles. At Lexor Miami, you get it fully authentic, backed by an authorized dealer, while stock lasts.
Frequently Asked Questions
What color is the 5AK90Y75 colorway?
A gold metal frame paired with gradient Pink Infrared lenses that shift through pink, red, and purple.
Is the MU A51S a rimless frame?
Yes, it's a rimless rectangle design with a single bridge, built in gold metal (stainless steel).
What size is the frame?
75mm lens width, 14mm bridge width, and 110mm temple length.
Are the lenses polarized?
No, the Pink Infrared lenses in this colorway are not polarized.
What other colorways does the MU A51S come in?
It's available in several finishes, including pale gold with light blue lenses, gold with bronze mirror gradient, gold with light or dark grey lenses, and silver with a mirror silver gradient.
Where is this frame made?
It's made in Italy, as part of Miu Miu's Fashion Show eyewear line.
Does Lexor Miami sell authentic Miu Miu sunglasses?
Yes, Lexor Miami is an authorized Miu Miu dealer, and every pair is 100% authentic and brand new, including the original case, cloth, and paperwork.
Is the MU A51S 5AK90Y75 currently in stock?
Stock is limited — it's best to confirm availability with Lexor Miami before visiting or ordering.
Visit Lexor Miami
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