We sew sensors into clothing.
Our AI reads what they record.
X³ is the fashion-tech brand of Korean Friends. GALLERY X makes the clothes, RFID-X the sensor, FAI-X the AI.
↓ See the three layersX³ · Three brands, one garment
One garment,
three layers.
Clothes you wear, a sensor sewn in,
an AI that reads the record.
- GALLERY X — apparelA custom apparel brand with a street edge.
- FAI-X — AIFashion AI that reads a garment’s record to track stock and tell genuine from fake.
- RFID-X — sensorA sensor sewn in where the care label goes. NFC and UHF in a single tag.
RFID-X · Sensor
RFID-X
Garment RFID,
sewn in like a care label.
One tag carries both NFC and UHF. Shoppers read it by tapping a phone; stores and warehouses read many garments at once with a handheld reader or a gate. Unlike a hang tag cut off at the till, it stays sewn into the garment for its whole life.
NFC13.56 MHzUHF860–960 MHzAttachmentsewn-in · wash-durableRegistered patents7
More on RFID-X ↗rfidx.koreanfriends.co.kr/en
Which line sewed it, and when
Between warehouse and store
Where it sold, and with what
Needs RFID-X sewn into the garment
FAI-X · AI
FAI-X
Fashion AI that reads
where a garment has been.
Which line sewed it, which warehouses and stores it passed through, where it sold, how it was washed and worn. FAI-X uses that record to manage styles, analyze stores and authenticate products.
- Style management
- Retail analytics
- Authentication
- Matching
- Digital closet
- Healthcare linkage
Store analytics and recommendations run on the data you already have. Tracking after washing and authentication need RFID-X sewn into the garment.
An enterprise AI for fashion brands, retailers and uniform or rental operators.
More on FAI-X ↗faix.koreanfriends.co.krGALLERY X



GALLERY X · Apparel
Custom apparel
with a street edge.
The line includes T-shirts printed with graphics such as Angel, Winged Lion and X-ray, terry and fleece sweatshirts, and winter padded jackets.
Trademark No. 40-2476214 · registered 2025.12


+82FACTORY · Geumcheon, Seoul
Our factory sits
next to our lab.
One complex in Geumcheon, Seoul holds our R&D lab, a sewing factory, printing equipment and a warehouse. The people who develop the sensors and the people who sew the clothes work in the same place.
01SpreadingFabric is laid out in many plies.
02CuttingAn automatic cutter follows the pattern.
03SewingOverhead hanger lines carry each piece from station to station.
04ShippingBoxed and sent to stores and customers.
- Address
- 468 Seobusaet-gil, Geumcheon-gu, Seoul
- One complex
- Lab · sewing · printing · logistics
- Smart factory
- Built 2021 · upgraded 2025
- Supply record
- Direct supply contract with The Metropolitan Museum of Art · 2021.12

