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Lego Ultraboost：How to Spot Fakes (2026)

BY POIZON / UPDATED: 2026-02-12 13:13:48

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Before buying collectible running sneakers, use POIZON's expert-backed authentication to verify construction details, materials, and serial codes. Focus on knit texture, midsole responsiveness, outsole pattern, and lace hardware. Inspect packaging and included tags for factory stamps and correct style information. Below is a curated product list to check against these criteria before purchasing or consigning and save time and risk.

Adidas

Adidas UltraBoost All Terrain 'Black Cool Grey Aqua'

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FAKE

Inspect the knit upper for uniform weave density and precise color transitions: black base, cool grey overlays, and aqua accents must align symmetrically. Heel counter should be molded, snug, and free of excess glue. Midsole foam shows distinct pellet texture with evenly fused pattern and no discoloration. Outsole tread pattern matches factory reference and demonstrates consistent rubber compound distribution throughout.

Label

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Check internal tongue tag for crisp fonts, correct style ID, and properly formatted production codes. Barcode and SKU numbers must match the box label exactly. Heat-stamped logos and quality-control stamps are sharp, evenly inked, and correctly spaced. Inspect size tag seams and placement; stitching should be straight with no loose threads. Authentic labels use precise material and back adhesives consistency.

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Adidas

Adidas UltraBoost Light 'Triple White'

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FAKE

Verify the clean white knit upper for consistent pore size and seamless joins. No uneven glue marks or stray fibers should appear on the vamp or collar. Midsole foam should display uniform white pellet fusion without grey tinting. Laces and lace cage must be correct silhouette and stiffness, with outsole rubber matching reference and showing symmetrical flex grooves and texture.

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Confirm the interior size tag includes accurate country codes, standardized date format, and a serial number matching the box barcode. Material codes and font weight must be consistent with known authentic samples. Seams around the tag are neat and factory-stitched. The box label displays precise SKU, size, and colorway with clear printing and no smudges or altered numbers at all.

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Adidas

Adidas Wmns Ultraboost 5X 'White Lucid Pink' Women's

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Inspect the soft knit upper for accurate color layering: lucid pink highlights should be evenly placed with no bleeding into adjacent panels. The heel tab must sit flush and show consistent heat-pressing. Responsive pellet midsole exhibits uniform pellet compaction and a slightly glossy finish. Check stitch spacing around eyestays, ensuring even tension. Soles show correct multi-color pattern without paint overspill.

Label

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FAKE

Examine the tongue label for exact font kerning, accurate country codes, and production week/year matching known manufacturing windows. Serial numbers are uniquely formatted; duplicates across sizes indicate fakes. Adhesive backing is flush with consistent edge trimming. Box label graphics, holograms, and barcode align to printed SKU. Any spelling errors, fuzzy printing, or mismatched codes are immediate red flags for buyers.

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Adidas

Adidas UltraBoost 5 'Black White'

Appearance

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REAL

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FAKE

Assess the black knit upper for depth of black dye and uniform texture. White accents must be bright without grey tinting. Heel shape and midfoot support elements are rigid and precisely positioned. Midsole pellet clusters show consistent size and matrix spacing with no compressed zones. Examine outsole for correct dual-color segmentation and sharp edge definition. No visible glue seepage anywhere.

Label

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FAKE

Verify inner size tag printing quality: letters and numbers are sharp, evenly spaced, and use manufacturer-specific fonts. The production code aligns with known factory ranges and matches barcode data. Stitching around the tag is machine-precise with no hand-sewn inconsistencies. Check box label for exact SKU, size, and color wording, printed cleanly without smears, alterations, or mismatched gloss levels at all.

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Always compare photographed details to verified references: stitch length, heel cup shape, tongue tag placement, and serial fonts. Verify insole codes, production dates, and correct SKU formatting. When in doubt, request raw factory photos and authentication records. Using POIZON's dual human and AI review reduces counterfeit risk and provides documented proof for resale or insurance purposes and buyer confidence overall.

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