# What Is an Authenticity Check on Pre-Owned Clothing? A Step-by-Step Standard

_By GradeThread Team · Published September 16, 2026_

> An authenticity check confirms a garment is genuine — hardware, stitching, materials, and labels. It says nothing about wear. Here's the step-by-step standard.

# What Is an Authenticity Check on Pre-Owned Clothing? A Step-by-Step Standard

An authenticity check is a systematic inspection of a garment's hardware, stitching, materials, labels, and construction details to confirm it was made by the brand it claims to be — nothing more. It answers one question: is this real? It does not answer whether the fabric is worn thin, the zipper still runs, or the seams are holding. That's a separate job, and conflating the two is where a lot of resellers get burned.

We've watched sellers run a thorough authenticity check on a designer trench, post

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