When sourcing Original Vans, authenticity is the primary concern. You must verify the factory code (IFC, HF, DT, etc.) stamped inside the waffle sole, which should match the code on the shoebox. Check for consistent stitching (no loose threads), the 3D molded heel logo (Off The Wall), and the distinctive waffle outsole pattern made of high-quality vulcanized rubber. For B2B buyers, requesting a Certificate of Authenticity or Authorization Letter from the supplier is essential to ensure you are not purchasing counterfeit goods.