chanel at harrods|chanel harrods uk To tell if a Louis Vuitton Supreme belt is real, examine the engraving on the leather part of the interior side of your belt. Fake belts often have text that appears either too thick or thin. 1. Engraving. Authentic: Appropriate thickness and engraving depth. Fake: Text appears too thick due to it being engraved too deeply into the leather. Subscribe