Why do sportswear brands fail quality control?

Most failures are systemic, not random:

• Fit inconsistency – the #1 driver, linked to 67% of apparel e-commerce returns;
• Skipped in-line (DUPRO) checks – defects discovered only at finished-goods stage;
• Unverified mills – fabric specs accepted on trust, not test reports;
• Loose AQL discipline – sampling waived to hit ship dates;
• No third-party inspection – no independent proof before container loads.

With apparel e-commerce averaging a 24.4% return rate, QC is a margin lever, not a checkbox.