Short answer: choose a clothing manufacturer by matching their real capacity and process to your product, then verifying that match with documents, samples and a small paid trial — not with a website claim or a generic “eco / patented” pitch. Ask the same concrete questions of every shortlisted factory, score the answers, and only then negotiate price.
This page is a buyer checklist for brand owners and sourcing teams. For a scored scorecard you can reuse, see how to choose an apparel manufacturer. Startup-specific constraints (cash, small MOQ, first-order risk) are covered in choosing manufacturers for startups and clothing manufacturer for startups.
Decide what you are buying before you shop for a factory
Factories are not interchangeable. Write down, before outreach:
- Product type and construction: cut-and-sew jersey tees, fleece, underwear, woven shirts and seamless knits use different lines and skill sets (see cut-and-sew manufacturers).
- Who sources fabric: full-package (CMT plus fabric) vs cut-make-trim only changes lead time, MOQ and who owns shade risk (see private label vs custom cut-and-sew).
- Target volume and reorder pattern: one seasonal drop vs monthly repeats.
- Markets and labelling: where you sell drives fibre, care and origin rules (FTC textile and care rules for the U.S.; other markets have their own).
- Hard constraints: first ship date, max unit cost, max MOQ, whether decoration is in-house.
RFQ checklist (send the same pack to every factory)
A useful request for quotation (RFQ) lets factories quote the same job. Attach a tech pack or, for a basic tee, the minimum fields in what a basic tee tech pack must include. Ask for:
- Unit price by quantity break (for example 300 / 500 / 1,000 / 3,000) with fabric and trim assumptions stated.
- MOQ per style, per colour and per size run — and what drives each minimum (see clothing manufacturing MOQ explained).
- Lead time broken into sampling, fabric, cutting/sewing, finishing and packing (see where production weeks actually go).
- Sampling ladder and fees: proto, fit, size set, pre-production (PP) — what each costs and how many revision rounds are included (see sample development services).
- Capacity proof: monthly output for similar products, number of lines or operators on that product family, and whether your order would share a line with other clients.
- Compliance pack: business licence, social audit summary if they have one, and for cotton into the U.S. the supply-chain documents buyers typically need under UFLPA (see UFLPA documents to ask for).
- QC method: in-line checks, final inspection AQL (edition of ISO 2859-1, inspection level, critical/major/minor limits) — see AQL 2.5 or 4.0 for knitwear.
- Subcontracting policy: which steps leave their building, and whether that needs written approval.
Audit and sample before you commit volume
| Check | What “good” looks like | Red flag |
|---|---|---|
| Facility | Named address you can visit or audit; photos/video of the actual lines for your product | “Factory” that will only meet in a showroom or hotel |
| Samples | Paid samples made to your tech pack, with a sealed approval record | Catalogue photos or “similar style” as the only proof |
| Capacity | Load plan that shows your ship date without silent overtime assumptions | Promise of any date without a fabric ETA |
| Price | Quote that explains fabric, labour, trim, overhead | Quote far below peers with no explanation — see quotes much lower than others |
| Questions | Clear answers to the list in questions to ask a clothing manufacturer | Vague marketing answers to technical questions |
Use a structured audit when stakes are high: clothing manufacturer audit checklist covers technical, social and commercial points. For QC system design inside the factory, see clothing factory quality control.
Sampling ladder and the trial order
- Proto / development sample — proves construction and fabric choice.
- Fit sample — corrects measurements and grading comments.
- Size set — checks the graded nest, not only the sample size.
- Pre-production (PP) sample — made from bulk fabric and trim; becomes the sealed standard for bulk (record what to keep: sealed sample approval record).
- Paid trial / pilot order — often 10–30% of a first seasonal buy, enough to test packing, labelling, shade and on-time behaviour before a full commitment.
Skipping PP on a repeat can be reasonable only when fabric lot, construction and factory line are unchanged — see what to check before skipping a PP sample.
Decision rule
Shortlist two or three factories that can make your product at your volume. Rank them on capacity proof, sample quality, lead-time realism and compliance transparency first; use price to break ties among factories that already clear that bar. A manufacturer that cannot explain MOQ, lead time or subcontracting in writing is not ready for your brand, whatever the brochure says.
Where Knitwear Base fits
Knitwear Base is a China-based knitwear manufacturer (tees, hoodies, underwear, loungewear). We quote from a clear tech pack, run a defined sampling ladder and state MOQ and lead time in writing. Send your RFQ through the contact page or start from our private label and T-shirt manufacturing pages.
Sources and further reading
- ISO 2859-1:2026, Sampling procedures for inspection by attributes (AQL)
- U.S. Customs and Border Protection, Uyghur Forced Labor Prevention Act
- eCFR, 16 CFR Part 303, Rules under the Textile Fiber Products Identification Act
- eCFR, 16 CFR Part 423, Care Labeling of Textile Wearing Apparel
- FTC, Threading Your Way Through the Labeling Requirements Under the Textile and Wool Acts
Rules and standards are summarised from their official pages for general guidance; this is not legal advice. Check the current version and the requirements of your own market before you rely on them.
