SUPERMARKETT, Brussels. Second-hand streetwear and luxury.

Our authentication process

At SUPERMARKETT, no piece goes on sale until it has been authenticated twice: once from photos, before we even buy it, and again in hand once it reaches the shop. Five years of handling Supreme, BAPE, Needles and Louis Vuitton have taught us that a fake is rarely caught by its logo. It gets caught on the details the counterfeiter did not think were worth copying.

5 years of experience in resale
2 checks on photos before buying, in hand on arrival
Every year in Japan, with our sources
100 % authentic, that is our guarantee

Five years learning to see

We did not start with a written method. We started with pieces, a lot of pieces, and no room to get it wrong. Five years of resale, first online and then in the shop on rue du Lombard, adds up to thousands of items through our hands: Japanese streetwear, Supreme and Stüssy archive, BAPE, and luxury like Louis Vuitton, Gucci or Prada.

That experience is our main tool. When you look at clothes every day, you end up sensing that something is off before you can say why: the weight of a fabric, how stiff a collar sits, the way a print reads, the sound of a zip. Then we go looking for the proof, and we do not stop until we have it.

It is also why we keep a physical shop. Handling authentic pieces every day is what keeps the eye sharp. Sell online only and you lose that daily practice.

What we learn, we try to pass on. Our authentication guides on social media, starting with the one on BAPE tees, are there to give everyone the right reflexes, including people who do not buy from us.

What Japan taught us

The Japanese second-hand market is the most demanding we know. Over there a used garment is sold with a proper spec sheet: condition graded on a precise scale, every flaw listed one by one, measurements to the millimetre. The customer does not have to take anyone's word for it, the information is right in front of them.

We go back every year, in May. Tokyo first, around Harajuku, Shimokitazawa and Koenji, then Osaka. All the areas where specialist vintage shops cluster. We work with shops we know and who know us. We do not publish their names, that is the condition for keeping access to the best pieces, but these are relationships built over several years rather than one-off buys.

Here is what we brought back, and apply to every piece:

  • Grading. Every piece gets a reasoned condition rating, not a vague "good condition". Flaws are shown, not hidden.
  • Curation. We do not take what is available, we take what deserves to be offered. Sorting is part of the job.
  • A coherent selection. A piece has to belong in the whole. A bargain that has no business being in the selection is still a bad idea.
  • Authentication settled upstream. A Japanese customer does not wonder whether a piece is real, that question was dealt with before it reached the rail. That is the experience we want to offer in Brussels.

That work on the ground is what gives us our Japanese selection:9090, Younger Song, Auralee, Hysteric Glamour, Comme des Garçons, Evisu. All pieces you will struggle to find anywhere else in Belgium.

Our process, step by step

Our basic rule: a doubtful piece should never reach the shop. So authentication starts before the purchase, not after. Every item goes through these six steps, whether it costs 60 € or 1,800 €.

  1. Sourcing, the source comes first

    Good authentication starts before the piece. We buy from specialist vintage shops in Japan we have worked with for years, and from a network of known sellers in Europe. When a source is new to us, the level of checking goes up automatically.

  2. Photo authentication, before we buy

    We never buy off a catalogue shot. We ask for the piece from every angle, with the details that matter: inner labels and care labels, serial numbers, seams and topstitching, embroidery, hardware, prints, and measurements. If an angle is missing, we ask again. No complete photo file, no purchase.

  3. Comparison against legitimate references

    We never validate on gut feeling. Every detail is compared to documented authentic examples of the same model and the same season: brand archives, reference photos from verified sales and Grailed, our own photo archive built up over the years, and the authentic pieces we keep in the shop to compare against.

  4. When in doubt, a brand specialist

    We do not settle it on our own. We have built up expert contacts for every brand we sell, in streetwear as much as in luxury. As soon as a point stays unexplained, we send them the piece and their call is final. Until we have it, the purchase stays on hold.

  5. Physical check on arrival, in the shop

    The piece cleared on photos arrives in Brussels and we check everything again in hand: how it matches the original photo file, the feel of the fabric, the weight, the inner finishing, the real condition. We give it the time it needs, a few minutes for a tee and a lot longer for a bag or a rare archive piece.

  6. Documentation, then listing

    The approved piece is graded, measured flat (shoulders, chest, length, sleeves) and photographed, authentication details and any flaws included. That information goes on the product page exactly as it is, so you know precisely what you are getting.

And when a piece does not pass?

Because we filter on photos upstream, a fake almost never reaches the shop. What does happen is a piece that does not match the original photo file. In that case the rule is simple and absolute: it does not go on sale, not in the shop, not online, not anywhere. Those garments are given to people in need or reused for personal projects.

What we look at, brand by brand

Every brand has its signatures, and every fake has its blind spots. Without giving everything away, here is what we check first on the brands we sell most.

How we authenticate a Supreme piece
  • The labels. Neck label and season label: typeface, weave, format and placement all have to match the stated year. Supreme has changed its tags several times and the timeline is documented.
  • Care labels. The detail counterfeits care about least. We look at print quality, alignment, wording and language.
  • The print. Ink thickness, edge definition, how the white reads on a box logo, ageing consistent with the age of the piece.
  • The stitching. Stitch density, regularity of the topstitching, how clean the reverse is.
  • Fabric quality. Cotton weight and hand vary from season to season and are not cheap to copy.
See the Supreme pieces available
How we authenticate a BAPE piece

Same logic as Supreme, with signatures of its own. BAPE is also where we published our first video authentication guide, on tees.

  • ABC Camo. The ape faces hidden in the pattern have precise features, and a fake simplifies or distorts them.
  • The labels. The "A BATHING APE" typeface, the Japanese care label, the tag structure by production period.
  • The print. Sharpness, density and placement of the graphic on tees.
  • Embroidery and stitching. Thread density, a clean reverse, symmetry. On a shark hoodie we also check the alignment of the teeth and that the zip runs all the way up the hood.
  • The fabric. BAPE cotton and fleece weight is recognisable by hand.
See the BAPE pieces available
How we authenticate a Stüssy piece
  • The handwritten signature. The proportions of the "S" and the way the letters connect are consistent, and a fake usually gives itself away on the slant.
  • The neck label. Stüssy has a well documented tag timeline, we work back through it to date the piece.
  • Screen printing. Natural cracking on a vintage piece does not look like a recent digital print.
  • Hem and sleeve seams, which have to match the production period.
See the Stüssy pieces available
How we authenticate Japanese streetwear (Needles, 9090, Younger Song, Auralee, CDG)

Japanese streetwear is faked less than Supreme or BAPE, apart from models that went viral like the Needles track pant. Here the traceability of the source counts as much as examining the piece, and our Japanese sources are our first guarantee.

  • Needles. Density and shape of the butterfly embroidery, the Nepenthes label, the hand of the velour, the inner finishing.
  • Comme des Garçons. Label structure by line (Play, Homme, Shirt), build quality, a country of manufacture that adds up.
  • Auralee. The material tells you. The grades of wool and cotton used are not cheap to copy.
  • 9090, Younger Song, Hotter Than Hell. Bought direct from Japanese shops we know, through identified distribution channels.
See the Japanese selection
How we authenticate luxury (Louis Vuitton, Gucci, Prada, Coach)

On luxury the photo file we ask for is heavier, and we call a brand specialist at the slightest doubt.

  • Louis Vuitton. Date code on older pieces or RFID chip on recent production, typeface and depth of the heat stamp, monogram alignment either side of the seams, patina and grain of the vachetta leather, weight and finish of the hardware.
  • Gucci. Inner serial tag, the "GUCCI made in Italy" stamp with the ® symbol, hardware engraving, regularity of the stitching.
  • Prada. The triangular plaque and how it is mounted, the stitching behind it being very telling, the zip brand, the structure of the inner logo.
  • Coach. Inner style code and serial number, the quality of the glove-tanned leather, regularity of the stamp.
  • On every brand. Consistency between the model, the line, the year and the internal codes. An accessory whose codes do not match the model is turned down.
See the luxury selection
How we authenticate Stone Island, C.P. Company and Chrome Hearts
  • Stone Island. The compass badge, its typeface, finish and button fixing system, plus the wash label and the consistency of the garment dyeing.
  • C.P. Company. The goggle lens, how the hood is built, inner labels by period.
  • Chrome Hearts. The .925 silver hallmarks, the real weight of the piece, how crisp the engraving and the relief are, the finish of the solder joints.
See Stone Island

We compare, we do not guess

An opinion with nothing to compare it to is just an opinion. So every decision rests on concrete references:

  • Official brand archives. Lookbooks, catalogues and campaigns from the season in question, to check that the colourway, the cut and the graphic actually existed.
  • Grailed and verified sales. Photo to photo comparison with authenticated examples of the same model.
  • Our own archive. Five years of photo files and documents built up piece by piece. Every item authenticated makes the next one easier.
  • Our physical collection. Authentic pieces kept in the shop that we can compare in hand straight away. That is the Japanese method: compare the real thing to the real thing rather than to a photo.
  • Our brand specialists, called in as soon as a point stays open.

The people we work with

Authentication is not a solo job. It rests on a network built over five years and kept alive by our yearly trips to Japan.

Our partner shops in Japan

Specialist vintage shops in Tokyo, around Harajuku, Shimokitazawa and Koenji, and in Osaka. We see them every year. We do not publish their names, that is what keeps our access to the best pieces open. What matters is that they are not strangers behind a listing but people we meet face to face and whose way of working we know.

Our European network

Resellers, collectors and long-standing customers, all known to us. It is a small world, a dubious source gets spotted fast and word travels.

Our specialists, brand by brand

For every brand in the shop we have built up an expert contact, someone whose speciality it is and who can settle it where we have a doubt. On luxury leather goods and high value grails we ask for that outside opinion before we even buy.

Until we have a clear answer, the piece does not join the selection.

Our guarantee

Every item sold at SUPERMARKETT is authentic

That is the commitment behind the whole process described on this page. You should be able to walk into rue du Lombard or order online without having to wonder whether the piece is real. We have already asked that question, several times, before you.

Doubt about something you bought? Write to us, we will take it back and look at it again with you.

A question about a piece? Get in touch

Frequently asked questions about authentication

Is every piece sold on supermarkett.be authenticated?

Yes, without exception. No piece is published on the site or put out in the shop before going through our full process, meaning photo authentication before purchase and then a check in hand on arrival. That applies to a 60 € Stüssy tee just as much as to a Louis Vuitton bag.

How do you authenticate a piece you have not received yet?

We ask the seller for a complete photo file, from every angle: inner labels, care labels, serial numbers, seams, embroidery, hardware and measurements. We then compare those elements to documented legitimate references. No complete photo file means no purchase, and if a doubt remains we call in a brand specialist before deciding.

Do you use outside experts?

Yes. We have built up an expert contact for every brand we sell. As soon as a point stays unexplained after our own examination, we send them the piece and their call is final. On luxury, that second opinion is automatic at the slightest doubt.

How can I tell a real Supreme or BAPE myself?

Start with the labels: the neck label and the season label have to match the stated year, and care labels are often where counterfeits fall down. Then look at print quality, stitch density and the hand of the fabric. An unusually low price remains the best warning sign. We also publish authentication guides on social media, and you can come by the shop on rue du Lombard: seeing the differences on real pieces is still the fastest way to learn.

What happens to a piece that fails the check?

It never goes on sale, not in the shop, not online, not anywhere. Because we filter on photos upstream, counterfeits hardly ever reach us. What can happen is a piece that does not match the original photo file, and in that case it is given to people in need or reused for personal projects.

Where do your Japanese pieces come from?

From specialist vintage shops in Tokyo (Harajuku, Shimokitazawa, Koenji) and Osaka that we go back to every year in May. These are relationships built over time, and that is what lets us offer Needles, 9090, Younger Song or Hysteric Glamour in Brussels, which are hard to find anywhere else in Belgium.

How long does authenticating a piece take?

As long as it needs. The photo review can take a few minutes or several days, when angles have to be requested again or a specialist opinion is pending. The check in the shop is quick on a tee and much longer on luxury leather goods or a rare archive piece. We never cut that step short to publish faster.

I want to sell my pieces, do they go through the same process?

Exactly the same one, and that works in your favour: a piece we have validated resells better. Send us detailed photos, or come straight to the shop with your pieces.

The shop

Address Rue du Lombard 26
1000 Brussels
Opening hours Monday 1pm to 7pm
Tuesday to Saturday 11am to 7pm
Contact Get in touch

SUPERMARKETT, Brussels. Second-hand streetwear and luxury.

Our authentication process

At SUPERMARKETT, no piece goes on sale until it has been authenticated twice: once from photos, before we even buy it, and again in hand once it reaches the shop. Five years of handling Supreme, BAPE, Needles and Louis Vuitton have taught us that a fake is rarely caught by its logo. It gets caught on the details the counterfeiter did not think were worth copying.

5 years of experience in resale
2 checks on photos before buying, in hand on arrival
Every year in Japan, with our sources
100 % authentic, that is our guarantee

Five years learning to see

We did not start with a written method. We started with pieces, a lot of pieces, and no room to get it wrong. Five years of resale, first online and then in the shop on rue du Lombard, adds up to thousands of items through our hands: Japanese streetwear, Supreme and Stüssy archive, BAPE, and luxury like Louis Vuitton, Gucci or Prada.

That experience is our main tool. When you look at clothes every day, you end up sensing that something is off before you can say why: the weight of a fabric, how stiff a collar sits, the way a print reads, the sound of a zip. Then we go looking for the proof, and we do not stop until we have it.

It is also why we keep a physical shop. Handling authentic pieces every day is what keeps the eye sharp. Sell online only and you lose that daily practice.

What we learn, we try to pass on. Our authentication guides on social media, starting with the one on BAPE tees, are there to give everyone the right reflexes, including people who do not buy from us.

What Japan taught us

The Japanese second-hand market is the most demanding we know. Over there a used garment is sold with a proper spec sheet: condition graded on a precise scale, every flaw listed one by one, measurements to the millimetre. The customer does not have to take anyone's word for it, the information is right in front of them.

We go back every year, in May. Tokyo first, around Harajuku, Shimokitazawa and Koenji, then Osaka. All the areas where specialist vintage shops cluster. We work with shops we know and who know us. We do not publish their names, that is the condition for keeping access to the best pieces, but these are relationships built over several years rather than one-off buys.

Here is what we brought back, and apply to every piece:

  • Grading. Every piece gets a reasoned condition rating, not a vague "good condition". Flaws are shown, not hidden.
  • Curation. We do not take what is available, we take what deserves to be offered. Sorting is part of the job.
  • A coherent selection. A piece has to belong in the whole. A bargain that has no business being in the selection is still a bad idea.
  • Authentication settled upstream. A Japanese customer does not wonder whether a piece is real, that question was dealt with before it reached the rail. That is the experience we want to offer in Brussels.

That work on the ground is what gives us our Japanese selection:9090, Younger Song, Auralee, Hysteric Glamour, Comme des Garçons, Evisu. All pieces you will struggle to find anywhere else in Belgium.

Our process, step by step

Our basic rule: a doubtful piece should never reach the shop. So authentication starts before the purchase, not after. Every item goes through these six steps, whether it costs 60 € or 1,800 €.

  1. Sourcing, the source comes first

    Good authentication starts before the piece. We buy from specialist vintage shops in Japan we have worked with for years, and from a network of known sellers in Europe. When a source is new to us, the level of checking goes up automatically.

  2. Photo authentication, before we buy

    We never buy off a catalogue shot. We ask for the piece from every angle, with the details that matter: inner labels and care labels, serial numbers, seams and topstitching, embroidery, hardware, prints, and measurements. If an angle is missing, we ask again. No complete photo file, no purchase.

  3. Comparison against legitimate references

    We never validate on gut feeling. Every detail is compared to documented authentic examples of the same model and the same season: brand archives, reference photos from verified sales and Grailed, our own photo archive built up over the years, and the authentic pieces we keep in the shop to compare against.

  4. When in doubt, a brand specialist

    We do not settle it on our own. We have built up expert contacts for every brand we sell, in streetwear as much as in luxury. As soon as a point stays unexplained, we send them the piece and their call is final. Until we have it, the purchase stays on hold.

  5. Physical check on arrival, in the shop

    The piece cleared on photos arrives in Brussels and we check everything again in hand: how it matches the original photo file, the feel of the fabric, the weight, the inner finishing, the real condition. We give it the time it needs, a few minutes for a tee and a lot longer for a bag or a rare archive piece.

  6. Documentation, then listing

    The approved piece is graded, measured flat (shoulders, chest, length, sleeves) and photographed, authentication details and any flaws included. That information goes on the product page exactly as it is, so you know precisely what you are getting.

And when a piece does not pass?

Because we filter on photos upstream, a fake almost never reaches the shop. What does happen is a piece that does not match the original photo file. In that case the rule is simple and absolute: it does not go on sale, not in the shop, not online, not anywhere. Those garments are given to people in need or reused for personal projects.

What we look at, brand by brand

Every brand has its signatures, and every fake has its blind spots. Without giving everything away, here is what we check first on the brands we sell most.

How we authenticate a Supreme piece
  • The labels. Neck label and season label: typeface, weave, format and placement all have to match the stated year. Supreme has changed its tags several times and the timeline is documented.
  • Care labels. The detail counterfeits care about least. We look at print quality, alignment, wording and language.
  • The print. Ink thickness, edge definition, how the white reads on a box logo, ageing consistent with the age of the piece.
  • The stitching. Stitch density, regularity of the topstitching, how clean the reverse is.
  • Fabric quality. Cotton weight and hand vary from season to season and are not cheap to copy.
See the Supreme pieces available
How we authenticate a BAPE piece

Same logic as Supreme, with signatures of its own. BAPE is also where we published our first video authentication guide, on tees.

  • ABC Camo. The ape faces hidden in the pattern have precise features, and a fake simplifies or distorts them.
  • The labels. The "A BATHING APE" typeface, the Japanese care label, the tag structure by production period.
  • The print. Sharpness, density and placement of the graphic on tees.
  • Embroidery and stitching. Thread density, a clean reverse, symmetry. On a shark hoodie we also check the alignment of the teeth and that the zip runs all the way up the hood.
  • The fabric. BAPE cotton and fleece weight is recognisable by hand.
See the BAPE pieces available
How we authenticate a Stüssy piece
  • The handwritten signature. The proportions of the "S" and the way the letters connect are consistent, and a fake usually gives itself away on the slant.
  • The neck label. Stüssy has a well documented tag timeline, we work back through it to date the piece.
  • Screen printing. Natural cracking on a vintage piece does not look like a recent digital print.
  • Hem and sleeve seams, which have to match the production period.
See the Stüssy pieces available
How we authenticate Japanese streetwear (Needles, 9090, Younger Song, Auralee, CDG)

Japanese streetwear is faked less than Supreme or BAPE, apart from models that went viral like the Needles track pant. Here the traceability of the source counts as much as examining the piece, and our Japanese sources are our first guarantee.

  • Needles. Density and shape of the butterfly embroidery, the Nepenthes label, the hand of the velour, the inner finishing.
  • Comme des Garçons. Label structure by line (Play, Homme, Shirt), build quality, a country of manufacture that adds up.
  • Auralee. The material tells you. The grades of wool and cotton used are not cheap to copy.
  • 9090, Younger Song, Hotter Than Hell. Bought direct from Japanese shops we know, through identified distribution channels.
See the Japanese selection
How we authenticate luxury (Louis Vuitton, Gucci, Prada, Coach)

On luxury the photo file we ask for is heavier, and we call a brand specialist at the slightest doubt.

  • Louis Vuitton. Date code on older pieces or RFID chip on recent production, typeface and depth of the heat stamp, monogram alignment either side of the seams, patina and grain of the vachetta leather, weight and finish of the hardware.
  • Gucci. Inner serial tag, the "GUCCI made in Italy" stamp with the ® symbol, hardware engraving, regularity of the stitching.
  • Prada. The triangular plaque and how it is mounted, the stitching behind it being very telling, the zip brand, the structure of the inner logo.
  • Coach. Inner style code and serial number, the quality of the glove-tanned leather, regularity of the stamp.
  • On every brand. Consistency between the model, the line, the year and the internal codes. An accessory whose codes do not match the model is turned down.
See the luxury selection
How we authenticate Stone Island, C.P. Company and Chrome Hearts
  • Stone Island. The compass badge, its typeface, finish and button fixing system, plus the wash label and the consistency of the garment dyeing.
  • C.P. Company. The goggle lens, how the hood is built, inner labels by period.
  • Chrome Hearts. The .925 silver hallmarks, the real weight of the piece, how crisp the engraving and the relief are, the finish of the solder joints.
See Stone Island

We compare, we do not guess

An opinion with nothing to compare it to is just an opinion. So every decision rests on concrete references:

  • Official brand archives. Lookbooks, catalogues and campaigns from the season in question, to check that the colourway, the cut and the graphic actually existed.
  • Grailed and verified sales. Photo to photo comparison with authenticated examples of the same model.
  • Our own archive. Five years of photo files and documents built up piece by piece. Every item authenticated makes the next one easier.
  • Our physical collection. Authentic pieces kept in the shop that we can compare in hand straight away. That is the Japanese method: compare the real thing to the real thing rather than to a photo.
  • Our brand specialists, called in as soon as a point stays open.

The people we work with

Authentication is not a solo job. It rests on a network built over five years and kept alive by our yearly trips to Japan.

Our partner shops in Japan

Specialist vintage shops in Tokyo, around Harajuku, Shimokitazawa and Koenji, and in Osaka. We see them every year. We do not publish their names, that is what keeps our access to the best pieces open. What matters is that they are not strangers behind a listing but people we meet face to face and whose way of working we know.

Our European network

Resellers, collectors and long-standing customers, all known to us. It is a small world, a dubious source gets spotted fast and word travels.

Our specialists, brand by brand

For every brand in the shop we have built up an expert contact, someone whose speciality it is and who can settle it where we have a doubt. On luxury leather goods and high value grails we ask for that outside opinion before we even buy.

Until we have a clear answer, the piece does not join the selection.

Our guarantee

Every item sold at SUPERMARKETT is authentic

That is the commitment behind the whole process described on this page. You should be able to walk into rue du Lombard or order online without having to wonder whether the piece is real. We have already asked that question, several times, before you.

Doubt about something you bought? Write to us, we will take it back and look at it again with you.

A question about a piece? Get in touch

Frequently asked questions about authentication

Is every piece sold on supermarkett.be authenticated?

Yes, without exception. No piece is published on the site or put out in the shop before going through our full process, meaning photo authentication before purchase and then a check in hand on arrival. That applies to a 60 € Stüssy tee just as much as to a Louis Vuitton bag.

How do you authenticate a piece you have not received yet?

We ask the seller for a complete photo file, from every angle: inner labels, care labels, serial numbers, seams, embroidery, hardware and measurements. We then compare those elements to documented legitimate references. No complete photo file means no purchase, and if a doubt remains we call in a brand specialist before deciding.

Do you use outside experts?

Yes. We have built up an expert contact for every brand we sell. As soon as a point stays unexplained after our own examination, we send them the piece and their call is final. On luxury, that second opinion is automatic at the slightest doubt.

How can I tell a real Supreme or BAPE myself?

Start with the labels: the neck label and the season label have to match the stated year, and care labels are often where counterfeits fall down. Then look at print quality, stitch density and the hand of the fabric. An unusually low price remains the best warning sign. We also publish authentication guides on social media, and you can come by the shop on rue du Lombard: seeing the differences on real pieces is still the fastest way to learn.

What happens to a piece that fails the check?

It never goes on sale, not in the shop, not online, not anywhere. Because we filter on photos upstream, counterfeits hardly ever reach us. What can happen is a piece that does not match the original photo file, and in that case it is given to people in need or reused for personal projects.

Where do your Japanese pieces come from?

From specialist vintage shops in Tokyo (Harajuku, Shimokitazawa, Koenji) and Osaka that we go back to every year in May. These are relationships built over time, and that is what lets us offer Needles, 9090, Younger Song or Hysteric Glamour in Brussels, which are hard to find anywhere else in Belgium.

How long does authenticating a piece take?

As long as it needs. The photo review can take a few minutes or several days, when angles have to be requested again or a specialist opinion is pending. The check in the shop is quick on a tee and much longer on luxury leather goods or a rare archive piece. We never cut that step short to publish faster.

I want to sell my pieces, do they go through the same process?

Exactly the same one, and that works in your favour: a piece we have validated resells better. Send us detailed photos, or come straight to the shop with your pieces.

The shop

Address Rue du Lombard 26
1000 Brussels
Opening hours Monday 1pm to 7pm
Tuesday to Saturday 11am to 7pm
Contact Get in touch