How We Authenticate 100% Original Used Grails.
Every single pair on SneakerHub PK is guaranteed 100% Original & Authentic, sold strictly in curated Pre-Owned / Used condition. All shoes undergo a 10-point physical inspection under 365nm UV light before receiving our serialized holographic tag.
The 10 Inspection Pillars
1. 365nm UV Blacklight Scanning
Reveals hidden factory stamps, production dates, and eliminates replica glue leaks.
2. Stitching Density & Angle Gauge
Measures exact stitches-per-inch matched against official retail molds.
3. Outsole Tread & Heel Drag Analysis
Accurately quantifies wear percentage down to 0.1% accuracy.
4. Deodorization & Sanitization
Pairs undergo clinical ozone treatment to remove all bacteria and odors.
5. Box Label Font & Barcode Scanning
Cross-checks UPC serial codes directly with global manufacturer databases.
6. Strobel Board Glue & Insole Pattern
Checks internal footbed construction and authentic strobel stitching.
7. Tongue Tag Kerning & Microprint
Inspects high-resolution font kerning under 20x optical magnification.
8. Material Flexibility & Grain Quality
Tests premium leather grain response and suede nap texture.
9. Extra Laces & Accessories Verification
Verifies original factory lace bags, hangtags, and special packaging.
10. Holographic Tamper-Proof Tagging
Every passed pair receives a unique serial-numbered holographic vault tag.