Free Tool
Louboutin Box Label Checker
Louboutin shoes have no serial number and no date code. What you can check is whether the box label and the shoe describe the same pair: style, heel height, size and colour. This tool checks that consistency. It does not check authenticity.
Last reviewed 5 October 2026
What is printed, and where
| Outsole | Embossed into the red sole, under the arch: the script signature, MADE IN ITALY, and the EU size.Half sizes are written with the ½ character (37½), never 37.5. Older pairs also carry a VERO CUOIO shield. |
| Insole | The Christian Louboutin logo in gold foil, with “Paris” beneath.No number of any kind. |
| Box label | Style name and heel height in mm, material, colour, EU size, barcode, a black logo tile, and the reference.The reference is 7 digits plus a 4-character colour code, for example 3130694BK01. |
- No serial number
- No date code
- No NFC chip or QR code
- No certificate or authenticity card
Compare the box label with the shoe
Louboutin has no serial number or date code. This tool checks whether the box label and the shoe describe the same pair. It does not check authenticity. Fill in what you have; every field is optional.
A match proves nothing. Only a mismatch is informative.
Counterfeiters copy real box labels and real reference numbers, and boxes are sold on their own. A label that agrees with the shoe tells you the box was chosen with care. A label that describes a different shoe tells you the box and the pair did not leave the store together. Get a professional authentication →
The Mismatch That Caught a Real Fake
In our archive, a So Kate 120 pump arrived in a box labelled “LOUIS STRASS … FLAT”, reference 1101084. Louis Strass is a flat style. The label named a different model, a different heel and a different kind of shoe. Every one of those is something a buyer can read off the box in a listing photo, before paying.
How the Reference Works
The first seven digits identify a style at one heel height. The last four characters are the colour code. The same style at a different heel height gets a different reference: the Kate 85 is 3191416BK01, the Kate 100 is 3191411BK01. The first digit is not a gender code, and we do not read any digit as a year. Louboutin has not published what the digits mean.
| Reference | Style | Colour |
|---|---|---|
| 3130694BK01 | So Kate 120Black | Black |
| 3130694PK1A | So Kate 120Blush | Blush |
| 3080680BK01 | Pigalle 100Black | Black |
| 3260751B439 | La Pigalle 100Black, black lining | Black, black lining |
| 1100382BK01 | Pigalle 85Black | Black |
| 3191416BK01 | Kate 85Black | Black |
| 3191411BK01 | Kate 100Black | Black |
| 3190384BK01 | So Kate Booty 85Black | Black |
| 1240544B439 | Sporty Kate 85Black, black lining | Black, black lining |
| 1240544N295 | Sporty Kate 85Nude / blush | Nude / blush |
| 1180278BWI3 | Samson (men’s boot)Havane | Havane |
| 1260452BK01 | Sartoby (men’s derby)Black | Black |
| 3100592BK01 | Louis Strass (flat)(reseller-sourced)Black | Black |
| 3140495PK1A | Pigalle Follies 100(reseller-sourced)Blush | Blush |
Colour codes we have confirmed: BK01 black, PK1A blush / nude, B439 black, black lining, N295 nude / blush, BWI3 havane (brown). References come from Louboutin's own product pages unless marked reseller-sourced. The list is short on purpose. A reference that is not on it is not a red flag.
Sizes on the Sole
The sole carries the EU size. Women's sizes run 34 to 43; men's run higher, to about 47. That is the range we have sourced, not an official limit. Every genuine pair in our archive writes a half size with the “½” character. A sole stamped “36.5” is worth a closer look. On a box label or in a listing, a decimal is normal.
What does not settle anything
The VERO CUOIO shield: older genuine pairs carry it, and so do fakes, including fakes of newer styles. The red sole's hue: the trademark names Pantone 18-1663TP, but colour shifts with lighting and is not a decisive test from photos. Cards and certificates: Louboutin issues none, so a plastic “authenticity card” in the box is a fake tell, and its absence is normal.
Want the full authentication guide?
Read how to authenticate Christian Louboutin heels for the lacquer finish, the outsole stamp, the insole logo and the construction checks, ranked by what each one settles.
Frequently asked questions
- Do Louboutins have serial numbers?
- No. Christian Louboutin shoes carry no serial number, no date code, no NFC chip and no QR code. The only number is the reference on the box label: 7 digits plus a 4-character colour code, such as 3130694BK01. It identifies a style and colour, not your individual pair.
- What does the number on a Louboutin box label mean?
- The first seven digits identify a style at one heel height, and the last four characters are the colour code (BK01 is black, PK1A is blush). The So Kate 120 in black is 3130694BK01. The same style at another heel height has a different reference. Louboutin has not published what the individual digits mean, so they cannot be read as a year or a gender.
- Does a matching box label mean my Louboutins are real?
- No. Counterfeiters copy real labels and real reference numbers, and genuine boxes are sold on their own. A label that matches the shoe proves nothing. A label that describes a different style, heel height, size or colour is the useful finding, because it means the box and the pair did not leave the store together.
- How are half sizes written on Louboutin soles?
- Genuine Louboutin outsoles write half sizes with the ½ character, as in 36½ or 37½, below the signature and MADE IN ITALY. Every genuine pair in our archive does this. A sole stamped 36.5 is worth a closer look. On a box label or in a listing, a decimal half size is normal.
- Do real Louboutins come with an authenticity card or certificate?
- No. Louboutin's own FAQ says its boutiques do not issue certificates, and genuine pairs come with no authenticity card. A plastic card or a card promising guaranteed materials is a fake-packaging tell. Its absence is normal and tells you nothing either way.
- Is the Vero Cuoio stamp on the sole a sign of fake Louboutins?
- Not on its own. Older genuine Louboutins carry a VERO CUOIO shield embossed on the outsole, and the brand later dropped it. Fakes carry it too, including fakes of newer styles like the So Kate. Judge how cleanly the stamp is impressed rather than whether the shield is there.
Label checks out? The shoe still needs checking.
Send photos of both soles, the outsole stamp, the insole logo, the box label and the heels. Our authenticators review the pair and return a certificate.
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