Why this matters.. The cap manufacturing industry in mainland China and Hong Kong is mature, but quality variance is wide. A factory that makes 500 caps a month and a factory that makes 500,000 caps a month operate on completely different systems. Asking the right questions up front saves you months of miscommunication, sample rejection, and re-work.
1. How long have you been in cap manufacturing — specifically, not apparel generally?. "Since 1979" beats "30 years in textiles" because caps have their own equipment, skills, and supply chain. A denim factory that started making caps last year is not a cap manufacturer. Look for factories where caps are the primary product, not a side category.
2. Can I see your compliance certificates — and are they current?. Ask for the actual PDF, not "we have Sedex." Check the certificate number on the issuing body's website. A current SA8000:2014 certificate and a current Sedex SMETA 4-Pillar audit report are the baseline for any brand selling to EU or US retailers. OEKO-TEX Standard 100 for fabric is the baseline for any brand selling to the EU.
3. What is your daily capacity by category?. A factory that says "200,000 caps a month" without breaking it down by style is probably not running its own production. Ask: daily output for 6-panel structured caps, 5-panel caps, knit beanies, and bags. Real factories know these numbers to the thousand. If they can't break it down, they're subcontracting.
4. Where does production happen — your own facility or subcontracted?. Subcontracting is the single biggest source of compliance failure. A factory that outsources to two or three workshops cannot guarantee the same labor standards, the same material traceability, or the same QA process. For any order with compliance requirements, single-site production is non-negotiable.
5. What is the MOQ per style per colorway?. Standard is 100 pieces for caps, 200 for knit accessories and bags. Factories that demand 1,000+ MOQ are pricing out trial orders and forcing you to over-commit. Be cautious of factories that quote MOQ as low as 50 — they may not be running real production lines.
6. How long does a sample take, and is the sample cost refundable?. 3-7 working days for caps is the standard. Sample cost of USD 50-150 per style, refundable against bulk orders above 5,000 units, is the industry norm. If a factory charges $300+ per sample or takes 2+ weeks, they're either slow or treating sampling as a profit center.
7. Can I see a pre-production sample (PPS) before mass production starts?. The PPS is the single most important quality control step. It uses your actual bulk fabric on the actual bulk-production line. A factory that skips the PPS or offers it as an "optional" is a factory that will ship you a different product than the sample you approved.
8. What is your in-line QC process?. Look for daily production reports, an in-line QC station on every production line, and a clear escalation rule (typically: line stops on any defect rate above 2%). Factories that say "we check at the end" are doing final inspection only, which is too late to fix systemic problems.
9. What AQL standard do you use for final inspection?. AQL 2.5 per ISO 2859-1 is the standard for most consumer goods. Some factories quote AQL 4.0, which is more permissive. Some quote AQL 1.5, which is stricter. Know what you're getting and what your retailer requires.
10. Can I send my own third-party inspector?. Any factory that refuses your own inspector (or a third-party like SGS, Intertek, Bureau Veritas) is hiding something. Expect them to cooperate fully and to have a plan for the inspector's visit.
11. What is the typical lead time from sample approval to bulk delivery?. 45-60 days end-to-end is the realistic answer. If a factory quotes 20-30 days for a 5,000-unit order, they're either guessing or they're going to cut corners on fabric sourcing, PPS, or QC to meet it.
12. What are your payment terms?. 30% T/T deposit, 70% balance against shipping documents (B/L copy) is standard. Anything that requires 100% upfront, or 50% deposit on first order, is a red flag. Anything that requires 100% balance before shipping documents are released puts all the risk on you.
What to do with the answers.. If a factory gives clear, specific, detailed answers to most of these questions, they're worth sampling. If they give vague answers, or they push back on questions they don't like, keep looking. There are hundreds of capable cap manufacturers in China and Hong Kong — don't settle for the first one that quotes you a price.