Logo on the tongue: An authentic Adidas Samba will usually have the Adidas logo on the tongue. It should be clean, crisp and centered. Fake versions may have distorted or uneven logos.
“Samba” lyrics: the word “Samba” on the side of the shoe should be clear, with clean stitching and a uniform font. On counterfeits, text may appear blurry, misaligned, or poorly stitched.
Heel Tab: Original Adidas Sambas should have a clean and well-stitched Adidas logo on the heel tab. If the seam is loose or uneven, it is most likely a fake.