A legit check (often abbreviated LC) is the process of verifying whether an item is authentic or counterfeit. As streetwear values and counterfeiting sophistication have increased, legit checking has become an essential community skill. Legit checks examine details like stitching quality, tag fonts, material feel, packaging, and comparison against known authentic examples. Online communities dedicate significant effort to legit checking—subreddits, Discord servers, and forum threads where members post photos for evaluation. Professional authentication services have emerged, with platforms like StockX, GOAT, and CheckCheck offering verification for fees. The need for legit checks reflects streetwear's counterfeit problem: popular items are replicated with increasing accuracy, sometimes fooling even experienced collectors. Getting a legit check before purchasing from resale markets is standard practice. The skill of legit checking—knowing the telltale signs of fakes for specific items—represents valuable community knowledge.