Nike Dunk · Authentication
Grey Fog: real vs fake
Grey Fog is a muted grey-and-white Dunk Low where a soft “fog” grey on a white base decides everything. That neutral tone trips up factories: the grey drifts either cold-blue or warm-beige, and the low contrast makes a dirty panel seam harder to catch. LegitCheck AI highlights the flaws that get lost to the eye on a muted pair.
What to check on the Grey Fog
Model-specific zones – on top of the brand-level signs.
Softness of the fog-grey shade
Grey Fog’s grey panels are a soft, slightly muted grey with a neutral undertone. A drift into cold blue or a warm beige-grey is a telltale replica sign.
Grey-and-white panel seam
The low contrast hides a dirty seam, so look closely: the retail line is even and clean. On fakes the grey bleeds onto the white and the edge blurs.
Swoosh shape
The Swoosh is thin with a tapered tail and the correct end point near the heel. A thick or short logo with wandering stitching is a fake sign.
Heel “Nike” embroidery
Letters share one height, stitches are dense, the block is centered on the heel. Drifting letters and stray threads are typical of reps.
Size tag and style code
The tongue tag code must match the box. A code mismatch is a counterfeit red flag.
Midsole and upper join
The midsole is evenly painted and the glue line to the upper is clean. A dirty sole-to-upper join is typical of a fake.
Where to inspect
The key zones to photograph and check on this type of item – a schematic, not a product photo.
- 1Logo shape and placement
- 2Toe box and upper shape
- 3Heel counter and tab
- 4Midsole and stitching
- 5Tongue and size tag
The difference is in the details – drag the slider
Typical differences in workmanship: stitching consistency, edge finishing, detail quality. Left – factory quality, right – common replica flaws.
Replica 
Authentic Photo angles for the check
- 1 Overall view
- 2 Logo
- 3 Interior tag
- 4 Outsole
- 5 Box label
Check your Grey Fog right now
Snap photos of your item and get an AI verdict with a confidence score in about a minute.
FAQ
Why are muted colorways like Grey Fog harder to check?
The low contrast between grey and white makes a dirty panel seam and paint bleed harder to spot than on bright colorways. So you need to look more carefully at the seam lines and grey undertone – which is where AI helps.
What grey is correct on the Grey Fog?
A soft, slightly muted neutral grey. If the tone drifts into cold blue or a warm beige, it points to a rep.
Can the Grey Fog be checked from photos?
Yes. Shoot in even daylight from the side, from the back, and close-ups of the panel seam and tag – LegitCheck AI highlights the grey undertone, seam flaws, and Swoosh shape that get lost to the eye.
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