Inline QC helps streetwear brands catch problems while production is still running. Instead of waiting until all garments are finished, the QC team checks cutting, stitching, measurements, seam quality, trim placement, logo position, embroidery, printing, stains, thread ends, and workmanship during production. This is valuable because many problems can still be corrected early. For example, if a zipper is misaligned on the first production pieces, the factory can adjust the process before hundreds of jackets are completed. Inline QC is especially important for custom hoodies, jackets, tracksuits, pants, and washed garments because these products have more details that can drift during bulk production.