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Jordan: real vs fake

Every Jordan checkpoint on this site states a measurement, an accept range and how we arrived at it. No comparison photos we didn't shoot, no certificates.

Real vs fake guides
How To Tell If Jordan 4 Are Fake: 9 Measured Checks 13 measured checks How To Spot Fake Jordan 1: Style Codes, Eyelets, Tags 13 measured checks
Checkpoints covered
  • Size tag UK gap 1 full size between the US and UK numbers on a Nike men's size tag
  • Size tag CM number 27 centimetre number printed against a US 9; the CM row equals the US number plus 18
  • Size tag EU number 42.5 EU number for a US 9; the column steps 41, 42.5, 44, 45 and 46
  • Style code characters 9 characters in a retro code: six, a hyphen, then three colourway digits
  • Grade School code prefix 408452 six digit prefix shared by Grade School Retro 4 releases before the colourway digits
  • Retail price 220 US dollars at release for a 2026 adult Retro 4; the 1989 original listed at 110
  • Heel tab wordmark 1989 year the NIKE AIR back tab first shipped; Jumpman back tabs belong to the 2008 and 2012 retros
  • Box label code matches 2 places the same style code must read identically: the box label and the inner size tag
  • Tag CM versus foot length 0.8 centimetres between the CM number on a US 9 tag and the matching measured foot length
  • Style code prefix 555088 six digit prefix on a men's Retro High OG; the Mid runs 554724 and the Low 553558
  • Colourway digits 3 digits after the hyphen; the same three repeat on the adult and Grade School versions of one colourway
  • Eyelet pairs 9 eyelet pairs on a Jordan 1 High; the Mid carries 8 and the Low 6
  • Lace length 72 inches of flat lace a Jordan 1 High takes; the Mid takes 63 and the Low 54
  • Lace width 9 millimetres across a factory Jordan 1 flat lace, roughly 0.31 inches
  • Size tag CM row 28 centimetre number printed against a US 10 on a Nike men's tag; the CM row equals the US number plus 18
  • Retail price 185 US dollars for a 2026 men's Retro High OG; Grade School is 140 and Preschool is 85
  • Tongue tag wordmarks 2 wordmarks in use on the Jordan 1 tongue: NIKE AIR on OG releases and a Jumpman on the Mid
  • Grade School size ceiling 7 largest Grade School size Nike lists, 7Y, which reads 25 CM and UK 6
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