Questions to Ask a Clothing Factory — Verify capability, QC systems, and compliance proof—never just price. Suppliers often promise quality but lack the machinery to scale it. During a recent audit, we caught a factory using cheap single-stitch machines on compression gear; the seams snapped instantly during our stress test.
You must ask for equipment lists and binding sampling terms to prevent this. If you need boots-on-the-ground vetting, contact our team.
Key Takeaways: Vetting Suppliers Like a Pro
To filter suppliers quickly, ask these specific questions. A competent partner provides the “Green Flag” evidence below, while “Red Flags” indicate you should walk away immediately.
- “Will you review my Tech Pack?”
- Green Flag: They spot specific sizing or material errors in your file before asking for money.
- Red Flag: They accept a rough napkin sketch without requesting a detailed specs sheet.
- “What is your true MOQ for testing?”
- Green Flag: They allow a “testing phase” of 50–100 units (at a premium unit price).
- Red Flag: They demand a strict 500+ unit minimum for a first-time, unproven order.
- “What is the sampling cost?”
- Green Flag: They charge a fee (e.g., $100) to cover line interruption but refund it on the bulk order.
- Red Flag: They offer “free” custom prototyping (often a bait-and-switch tactic).
- “How do you define defect rates?”
- Green Flag: They agree to AQL 2.5 standards in the contract and allow video inspections.
- Red Flag: They promise “100% zero defects,” which is impossible in textile manufacturing.
- “What is the lead time breakdown?”
- Green Flag: They separate the timeline: e.g., “15 days for fabric sourcing + 15 days for sewing.”
- Red Flag: They quote a flat “2-week delivery” without checking current fabric stock levels.
Next Steps: Use the Downloadable Audit Checklist and the “Red Flag” Sidebar later in this article to grade the answers you receive.
The 8 Critical Questions to Ask a Clothing Factory
We have vetted hundreds of suppliers for activewear brands. The difference between a profitable launch and a warehouse full of unsellable inventory is rarely the fabric quality—it is the initial contract terms. You cannot rely on a factory’s website claims. You must interrogate their process.
Use this checklist to peel back the layers of a supplier’s operation.
1) “What product categories and construction types do you specialize in?”
The Logic: Specialization dictates machinery. A factory that produces excellent cotton t-shirts often lacks the specialized equipment required for performance activewear. For example, high-compression leggings require flatlock or coverstitch machines (ISO 607 standard) to allow seam stretch. If a t-shirt factory attempts this with single-needle machines, the seams will snap when the athlete squats.
The Script:
- “Do you have in-house flatlock and coverstitch machinery, or do you outsource it?”
- “Please send an unedited video of your sewing floor showing these machines in operation.”
Evidence to Request:
- Machine List: Look for specific brands (Juki, Pegasus) and stitch codes.
- Past Production Photos: Verify they have handled similar fabrics.
🚩 Red Flag: They claim to manufacture “everything” from denim to swimwear. No factory is an expert in rigid and stretch fabrics simultaneously.
Decision Rule:
- Pass: They own the specific machines for your fabric type.
- Fail: They outsource the sewing (loss of QC control).
2) “What is your MOQ—per style, color, and size—and what happens when I reorder?”
The Logic: Minimum Order Quantity (MOQ) is your primary cash flow risk. Factories prefer long runs to amortize setup costs. However, new brands need agility. A factory demanding 500 units per color locks up your capital in unproven SKUs. You need a “testing to scaling” pathway.
The Script:
- “Is the MOQ 300 pieces per style, or 300 pieces per color?”
- “Can I split 100 units across 5 sizes?”
- “Do you offer a tiered MOQ for market testing (e.g., 100 units at a premium)?”
The Startup Trade-off: Low MOQ (50–100 units) means higher unit costs and lower schedule priority. You are paying a premium for the safety of testing the market.
Decision Rule:
- Caution: Strict 500+ MOQ for a first run.
- Pass: Flexible tiers that allow you to scale up.
3) “What do you need from me to quote accurately?”
The Logic: If you send a vague sketch, the factory will assume the cheapest possible materials to secure the bid. This leads to “quote drift,” where the price rises once you request specific zippers or fabrics. A factory that accepts a napkin sketch plans to cut corners.
The Script:
- “Do you require a comprehensive Tech Pack before quoting?”
- “Do you have an internal pattern maker for grading sizes?”
Competitor Gap Fix: The Minimum Tech Pack To protect your IP and budget, your sourcing workflow must include:
- BOM (Bill of Materials): Exact composition (e.g., 80% Nylon / 20% Spandex) and GSM weight.
- POM (Points of Measure): A diagram showing exactly where to measure.
- Graded Spec Sheet: Measurements for every size (XS–XXL).
- Artwork: Vector files with exact placement dimensions.
Decision Rule:
- Fail: They provide a firm quote based on a photo alone.
- Pass: They refuse to quote until they see the BOM and specs.
4) “What is your sample making process and revision policy?”
The Logic: Sampling is where you catch errors, not in bulk production. You need a partner who treats the Pre-Production Sample (PPS) as a binding contract.
The Script:
- “What is the cost for a custom sample, and is it refundable on bulk orders?”
- “Do you create a ‘Size Set’ to verify fit across the full range?”
🛡️ Prototyping Before Bulk (Financial Safety Playbook)
- Never Skip the PPS: This sample must use the exact fabric, trims, and packaging of the final order.
- The Golden Sample: Sign and date the approved PPS. Mail one back to the factory and keep one. This is your legal standard for inspection.
- Version Control: Date every Tech Pack revision (e.g., Leggings_TP_v3_APPROVED.pdf) to prevent the factory from using an old file.
Decision Rule:
- Pass: A clear workflow: Proto → Fit → PPS → Bulk.
- Fail: They pressure you to approve bulk production from a digital photo.
5) “How do you handle QC and what is the protocol for inspection failure?”
The Logic: “High quality” is subjective; AQL (Acceptable Quality Limit) is math. Without an agreed standard, a factory can claim a 1-inch variance is “normal” while your customers return the product.
The Script:
- “Do you perform in-line inspections during sewing?”
- “Who pays for rework and re-inspection if the goods fail AQL 2.5?”
Competitor Gap Fix: Inspection Failure Protocol Your contract must stipulate:
- Defect Rate: AQL 2.5 for major defects (functional failures) and AQL 4.0 for minor defects.
- Rework: The factory repairs or replaces defective units at their cost.
- Re-inspection: If a third-party audit fails, the factory pays for the follow-up audit.
Authority Link: Verify standards with ISO 2859-1 Sampling Procedures.
Decision Rule:
- Pass: They accept third-party inspection and AQL standards.
- Fail: They refuse outside inspection or claim “we check everything ourselves.”
6) “What are your real lead times and what causes delays?”
The Logic: Factories often quote aggressive timelines to win business. You need the total lead time, including the weeks required to weave and dye custom fabric.
The Script:
- “Does your 30-day timeline start after the fabric arrives or after the order is placed?”
- “How do lab dips (color matching) affect the schedule?”
- “What are your holiday shutdown dates?”
Context: Understanding domestic vs. overseas lead times is critical. Overseas production often requires a 4–6 week buffer for ocean freight, whereas domestic options may be faster but costlier.
Documents to Request:
- Production Calendar: A Gantt chart showing: Fabric Arrival -> Cutting -> Sewing -> Ironing -> Packing.
Decision Rule:
- Pass: They include buffers for material sourcing.
- Fail: “Don’t worry, we are very fast.”
7) “Can you prove ethical and material compliance?”
The Logic: Western consumers demand ethical sourcing. Claims like “Eco-Friendly” are legally dangerous if you cannot prove them. You are liable for the claims on your label.
The Script:
- “Do you hold WRAP certification for social compliance?”
- “Is the fabric OEKO-TEX Standard 100 certified?”
- “Can you provide a GOTS Transaction Certificate for organic cotton?”
Verification Mini-Playbook:
- Scope: Does the cert cover garment manufacturing or just the yarn spinning?
- Address: Does the facility address match your invoice?
- Database Check: Verify the number on the OEKO-TEX Label Check or GOTS Public Database.
Decision Rule:
- Pass: Current, verifiable certificates matching the facility name.
- Fail: Expired certificates or screenshots that cannot be verified online.
8) “What is the total landed cost—and what is included?”
The Logic: A unit price of $5.00 can become $9.50 once it lands at your warehouse. This is the “Landed Cost” trap. A factory quoting EXW (Ex Works) is only giving you the price of the item sitting on their floor.
The Script:
- “Is this quote FOB (Free on Board) or DDP (Delivered Duty Paid)?”
- “Are polybags, barcodes, and hangtags included?”
Quote Hygiene Checklist: Ensure the quote breaks down:
- Unit Cost
- Mold/Screen Fees (for prints)
- Packaging
- Freight & Duties (Check Official Harmonized Tariff Schedule for rates).
🧠 Our Experience: We recommend DDP pricing for smaller brands. It shifts the risk of customs volatility onto the logistics provider, giving you a fixed price per unit.
Decision Rule:
- Pass: A transparent breakdown of Incoterms.
- Fail: A single lump sum with no details.
Need help navigating this checklist? We can handle the vetting and QC for you. Get a quote from LeelineSports.
Exceptions & Scenarios: When Standard Questions Fail
Standard vetting questions work for 90% of orders. However, in my years of sourcing, I have seen the “standard” rules destroy the other 10%. If you fit one of the profiles below, standard questions will generate dangerous false positives.
You must alter your interrogation strategy immediately if you fall into these categories.
1. The Cash-Strapped Startup (Low MOQ)
The Risk: Buying power dictates priority. If you order 50 units, you are “filler” work. When a 10,000-unit order arrives from a bigger client, your production stops. I have seen startups miss launch dates by months because they assumed a signed contract guaranteed a line slot. For small runs, it rarely does.
The Fix: Stop asking for custom dyes on small batches. You cannot dye 50 units without paying a premium that ruins your margin.
- Ask: “Do you have ‘available now’ fabric stock (greige fabric) that we can use?”
- Ask: “Can I parallel sample this design?”
🛡️ Editor’s Verdict: Never rely on one factory for a launch. For your first small run, pay for samples from two or three suppliers simultaneously. It costs $300 upfront instead of $100, but it buys insurance. If Factory A delays you, Factory B is ready.
2. Amazon FBA Sellers
The Risk: Compliance trumps quality. Amazon does not care if your stitching is perfect; they care if your barcode is scannable. I once saw a client’s shipment of 2,000 units rejected at the FBA dock because the polybag suffocation warning was the wrong font size. The cost to unbox, relabel, and repack destroyed their entire year’s profit.
The Fix: Shift the burden of compliance to the manufacturer.
- Ask: “Do you have a Zebra printer for thermal FNSKU labels?” (Inkjet smears; thermal does not).
- Ask: “Are your polybags at least 1.5 mil thick with localized suffocation warnings?”
- Ask: “Will you sign a contract where payment is released only after Amazon receives the inventory?”
3. Gyms & Teams (Hard Deadlines)
The Risk: “Best effort” is not a contract. If your season starts September 1st, a delivery on September 2nd is worthless. Most factories operate on estimated timelines and will not prioritize your jersey order over a Walmart order unless there is a financial consequence.
The Fix: You need a “Drop Dead Date” clause.
- Ask: “Will you accept a penalty clause? (e.g., 5% discount for every week delayed).”
- Ask: “Can you show me my production slot on your internal calendar?”
- Ask: “What is the specific date for fabric arrival?”
⚠️ Warning: If they refuse a penalty clause, they already know they will be late. Build a 3-week buffer into your own timeline, not theirs.
4. Domestic vs. Overseas Production
The Risk: The “Speed Myth.” New buyers assume “Made in USA” equals fast. However, if the US factory has to import the fabric from China, you lose the speed advantage and still pay higher labor costs.
The Fix: Validate the supply chain depth.
- Domestic: “Do you have the fabric in stock right now?”
- Overseas: “Can you air freight the first 10% of the order for our launch, and sea freight the rest?”
The Reality: Make your domestic vs overseas manufacturing decision based on unit economics. If your run is under 300 units, the shipping savings of domestic production often justify the higher labor costs.
5. Sustainability-Focused Brands
The Risk: The “Audit Illusion.” You ask for an ethical audit; they refuse. This is normal, as factories fear you will share proprietary data. However, a general factory certificate does not prove your specific batch is organic.
The Fix: Demand batch-specific proof.
- Ask: “Will you provide a Transaction Certificate (TC) for the organic cotton in my specific invoice?”
- Ask: “Can we do a live video walkthrough of the floor instead of sending the full audit document?”
⚖️ Legal Check: Without a Transaction Certificate linked to your invoice number, your “Organic” marketing claim carries high legal risk.
6. Technical Products (Compression, Swim, Active)
The Risk: Standard specs cause failure. I inspected yoga pants where the fabric passed, but seams burst during a squat test because the factory used standard thread tension. For activewear, “standard” is failure.
The Fix: Move from questions to lab requirements.
- Ask: “What is the Stitch Per Inch (SPI) setting for this seam?” (Higher SPI = more stretch).
- Ask: “Do you test Colorfastness to Chlorine (ISO 105) in-house?”
- Ask: “Can you add a ‘Stretch Recovery’ field to the QC report?”
7. Unique Designs (IP Protection)
The Risk: The “Showroom Leak.” NDAs are difficult for small US startups to enforce in China. I have seen “protected” designs end up in a factory’s showroom weeks later. An NDA creates a paper trail, but it does not physically stop a leak.
The Fix: Fragmentation is the only true protection.
- Ask: “Do you subcontract any cutting or printing steps?”
- Ask: “Can we include a ‘No Photography’ clause for the production line?”
Strategy: If your IP is revolutionary, split production. Have Factory A make the component and Factory B do the assembly. Or, keep the final “secret sauce” step domestic.
8. Trading Company vs. Direct Factory
The Risk: Hidden markups and lack of accountability. You might think you are talking to the owner, but you are speaking to an agent. This is not inherently bad—agents often offer better service—but you must know who cuts the check.
The Fix: Verify ownership instantly.
- Ask: “Can we do a live video call right now to see the cutting room?” (Agents will stall; owners will walk onto the floor).
- Ask: “Does the address on the invoice match the address on the business license?”
⚠️ Warning: If the addresses do not match, you are paying a middleman. Ensure the value they add (communication, QC, logistics) is worth the extra 15-20% cost.
Related Questions: Clearing Up the Confusion
1. What is a tech pack, and do I need one to contact factories?
It is your product blueprint. A sketch is not enough. The Tech Pack must list every zipper, fabric blend (BOM), and stitch type. In my experience, if a detail isn’t explicitly written in the Tech Pack, the factory will guess—and they will usually guess wrong to save money.
2. What’s a realistic MOQ for a new clothing brand?
Expect 300–500 units per style for standard overseas factories. Integrated mills often demand 1,000+, while smaller studios may accept 50–100 units at a much higher unit price. We often negotiate lower MOQs for clients by agreeing to use “available stock” fabric rather than custom-dyed rolls.
3. How long does the sample making process take?
Budget 3–4 weeks total. A rough prototype takes about 10 days, but the Pre-Production Sample (PPS) requires exact trims and fabrics. Always add a 10-day buffer for shipping and revisions; I have rarely seen a technical garment pass the first round of sampling perfectly.
4. What’s the difference between a pre-production sample (PPS) and a salesman sample?
The PPS is your manufacturing contract. A salesman sample is just for marketing or trade shows. Never approve bulk production based on a salesman sample. The PPS proves the factory’s actual production line can replicate the design, not just their sample room sewers.
5. What is AQL in apparel inspections (and what should I pick)?
It stands for Acceptable Quality Limit. It is a statistical standard used to accept or reject a shipment. For clothing, specify AQL 2.5 in your contract. This limits major defects (like open seams) to a strict percentage. Without this written agreement, “good quality” is just an opinion.
Still unsure if your supplier is telling the truth? Don’t guess with your budget. If you need help vetting a factory or want a guaranteed DDP (Delivered Duty Paid) quote that handles the logistics for you, contact our sourcing team here.
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