Choosing an activewear supplier is a comparison problem before it is a verification problem: which criteria matter for your product, how much weight each carries, and how several candidates score against the same questions. Generic procurement templates — price, quality, delivery — are not wrong, but they miss what decides activewear outcomes: how a facility handles stretch fabric, whether its machinery matches your construction, whether colour still matches at the second order. This guide builds the criteria catalogue: eight criteria in three groups, a weighting method, a seven-step process from longlist to shortlist, and a checklist to complete before you move to due diligence on the finalists. It is written for the stage before vetting — comparing many candidates, not examining one.

The short answer

  • Select activewear suppliers with a weighted criteria catalogue: eight criteria in three groups — product capability, commercial fit, reliability signals — fixed before you contact anyone, then scored identically for every candidate on the longlist.
  • The activewear-specific criteria: stretch-fabric competence, construction match between seamless and cut-and-sew, development capability, MOQ fit, price transparency, lead times and capacity, compliance documentation held at facility level, and colour consistency at reorder.
  • Run seven steps: requirements profile, weighted criteria catalogue, longlist, knock-out screening, one identical enquiry to every remaining candidate, scoring, shortlist. Due diligence on the finalists — documents, sample, pilot order — is a separate stage afterwards.
  • Separate knock-out criteria from weighted ones. A candidate that fails a knock-out — the construction you need does not run on its own lines, or compliance documentation does not exist at the facility that would make your product — leaves the process regardless of price.

Why activewear needs its own criteria catalogue

Generic supplier-selection templates score price, quality, delivery and service. None of that is wrong; it is just too coarse to separate activewear candidates, because the failures that cost money in this category are specific: a legging that loses recovery after a season of washes, a seam construction the facility had never actually run at volume, a third production run in a visibly different shade of the same colour. A facility can be excellent at woven shirts and still be the wrong choice for compression tights. The criteria have to encode the product, or the scoring rewards whoever writes the best enquiry response.

The catalogue in this guide has eight criteria in three groups. Product capability asks whether the facility can physically make your product well: stretch-fabric competence, construction match, development capability. Commercial fit asks whether its business model matches your order profile: MOQ fit, price structure, lead times and capacity. Reliability signals ask whether the result will still be right on the third order: compliance documentation and colour-and-quality consistency. The groups matter as much as the list — a candidate that scores brilliantly on capability and poorly on commercial fit is a good facility for somebody else's brand.

Before any criterion is scored, split the catalogue into knock-outs and weighted criteria. A knock-out is binary: fail it and the candidate leaves the process, whatever the price. Typical knock-outs are the construction capability your product actually requires and the existence of compliance documentation at the facility that would produce it. Everything else carries a weight, and the weights are yours to set: a first-collection brand usually weights MOQ fit and development support heavily; an established brand weights capacity and reorder consistency. Set the weights before the first quotation arrives — afterwards, an attractive price quietly rewrites the catalogue around itself.

It helps to be precise about which stage this is. Selection compares several candidates against the same catalogue and ends in a shortlist. Vetting examines one shortlisted candidate in depth — company documents, certificate scopes, a paid sample read like an inspector, a pilot order that measures. Running vetting-depth work on a whole longlist wastes weeks; skipping the comparison and vetting the first plausible name anchors you to the first decent quote. This guide covers the comparison stage. For the deep check of whoever survives it, see our separate guide to vetting activewear suppliers — that is the next step, not this one.

Group one: product capability

Stretch-fabric competence is the first filter. Activewear lives on knits with elastane, and elastane punishes casual handling: tension settings, needle choice, cutting relaxed fabric, heat in pressing and printing all show up later as broken stitches, twisted seams or lost recovery. Ask which stretch fabrics the facility runs week in, week out — compositions, weights, brushed or plain — and which styles in your product family it has produced. The giveaway is the reference list: a catalogue full of woven shirts or loose streetwear answers the question, whatever the sales pitch says.

Construction match is usually a knock-out. Seamless garments come off circular knitting machines and are a different production world from cut-and-sew; bonded and laser-cut construction is different again, with its own equipment and its own failure modes. A facility strong in one is not automatically competent in the others. Ask which constructions run on the facility's own lines and which would be subcontracted — an honest answer to that question is itself a selection criterion. If your range needs both seamless and cut-and-sew, you are realistically selecting either two facilities or a coordinated network, and it is better to know that now.

Development capability decides how much of your time every new style will cost. The criterion covers tech-pack literacy — does the facility read one properly and come back with questions — plus pattern-making, grading across the size range, fit-sample quality and lab-dip handling. At selection stage you cannot yet judge the samples themselves; you can judge how the candidate talks about development: who does the pattern work, how fit comments are processed, what a normal sampling sequence looks like. Candidates that can only copy an existing garment are a fit for some buyers and a dead end for brands developing original blocks.

Group two: commercial fit

MOQ fit is about matching order economics, not finding the smallest number. Ask for minimums per style, per colour and per size ratio, and for the logic behind them — fabric minimums from the mill, dye lots, line-changeover cost. A facility built for large programmes will quote a small order if pressed, then deprioritise it the moment capacity tightens; a facility built for small batches may struggle when you scale. What you are scoring is whether your realistic first-year order profile sits inside the candidate's comfortable range, not at its painful edge.

Price structure matters more than price level at this stage. A single lump sum tells you almost nothing; a quotation that itemises fabric, trims, packaging, sampling costs and testing, states the incoterm and payment terms, and declares its quantity assumptions can be compared honestly against the next candidate's. Ask what happens to the price at different volumes and what surcharges apply to small colour lots. Treat transparency itself as the criterion: a candidate that cannot or will not show the structure of its price is asking you to discover it later, after the deposit.

Lead times and capacity are one criterion, because a quoted lead time without a capacity context is a guess. Ask for sampling lead time, bulk production lead time and reorder lead time separately, in writing, with the assumptions stated — fabric availability is usually the swing factor. Then ask how the facility's year actually looks: peak months, holiday shutdowns, the point at which new orders queue. No candidate can promise immunity from a crowded season; what you are comparing is who states constraints plainly now, because that is the candidate most likely to tell the truth in September.

Group three: reliability signals

Compliance documentation is a knock-out with a precise wording: the documents must exist at the facility that would actually produce your goods. Certificates and audits — OEKO-TEX for materials, GOTS or GRS where organic or recycled claims are involved, amfori BSCI or similar social audits, ISO quality certification — are issued to specific facilities for specific scopes and validity periods. At selection stage the question is not yet whether the paper is genuine; it is who holds it. A candidate that answers with a holder, a scope and an expiry date scores; one that answers with a logo wall does not. Verifying authenticity against the issuing databases belongs to the vetting stage.

Colour and quality consistency is the criterion the first order cannot demonstrate — which is exactly why it must be asked about now. Ask how colour is controlled: lab dips against your standard, dye-lot management, instrumental colour measurement rather than eyeballing under shop light. Ask what the facility's final-inspection standard is — a defined level such as AQL 2.5, named in writing — and how defect claims are handled when something slips through. And read the enquiry itself as evidence: precise questions answered precisely, assumptions stated, bad news volunteered. The candidate's communication during selection is the cheapest preview you will ever get of its communication during a problem.

The process: seven steps from longlist to shortlist

Step one is a requirements profile — one page, written before any supplier contact: product types and constructions, fabric families, realistic quantities per style for the first year, target price corridor, compliance requirements for your market, and planned launch dates. Step two turns the catalogue into a scoring sheet: mark the knock-outs, distribute weights across the rest, and get the people who will live with the choice — design, buying, finance — to agree the weights now. A weighting argued about after quotes arrive is not a weighting; it is a justification.

Step three builds the longlist from wherever candidates realistically come from — trade fairs, online sourcing platforms, referrals from adjacent brands, or a sourcing partner's existing network. Collect names without ranking them. Step four screens that longlist against the knock-outs only, using information that is cheap to get: does the candidate run the construction at all, does it serve your product category, does facility-level compliance documentation exist. The output is a shorter list of candidates worth the cost of a proper enquiry — nothing more. Resist scoring anything yet; half-information scores are worse than none.

Step five is the structured enquiry, and its one rule is sameness: every remaining candidate receives the same tech pack or reference style, the same quantity assumptions, the same list of questions drawn from the eight criteria. Identical inputs are what make answers comparable — change the brief per candidate and the comparison quietly dies. Log two extra data points nobody has to be asked for: how long each answer took, and how precisely it addressed what was actually asked. Both are evidence for the reliability criteria, collected free.

Step six scores the answers on the weighted sheet — mechanical, brief, and best done by two people independently, so one persuasive email does not move a number it should not. Step seven cuts to a shortlist of two or three and changes mode: from comparing claims to verifying them. That is the due-diligence stage covered in our vetting guide — documents and certificate scopes checked, a paid sample read closely, a pilot order that measures. Selection has done its job when the candidates entering that stage are few enough to examine properly and strong enough that any of them could plausibly win.

The checklist before due diligence

Per candidate, the file is complete when it answers eight questions in writing. Which stretch fabrics and constructions run on the facility's own lines? Which reference styles exist in your product family? Who does development work, and how does a sampling sequence run? What are the minimums per style and per colour, and why? What exactly does the quoted price include, on which incoterm and payment terms? What are sampling, bulk and reorder lead times, and when is capacity tight? Which certificates and audits exist, held by which facility, with what scope and expiry? How are colour control, final inspection and defect claims handled?

Across candidates, the comparison is honest when four things are true. Every candidate answered the same brief with the same quantity assumptions. Knock-outs were applied before anyone fell in love with a price. The weights were fixed before the first quotation arrived and have not moved since. And the scoring sheet shows who scored what per criterion — not just a winner — so the decision can be explained to a colleague in one short conversation.

Before moving anyone to due diligence, three last checks. The shortlist is small enough to vet properly — two or three names, not six. Every shortlisted candidate would be acceptable if the vetting confirms its claims; if one of them would not, it is on the list for a bad reason. And the losing candidates are filed, not deleted: the scoring sheet you built is reusable, and the second-placed candidate is your fallback if vetting turns something up. Then move to the vetting stage — documents, sample, pilot order — one candidate at a time.

Where SEAMDANCE fits in this process — and where it does not

SEAMDANCE is a buyer-side sourcing and supply-chain management company in Xiamen, founded in 2018. We coordinate independent partner facilities — knitting, cut-and-sew, seamless, mills and dye houses — and we are not a factory ourselves. In a selection process, that model changes where the work sits: instead of longlisting and screening facilities one by one, you give your requirements to one team once, and we propose partner facilities from a pool we already work with, matched against the criteria above. The questions in this guide are, in compressed form, the ones we work through with a facility before it produces a client's order.

The commercial parameters are stated so you can score us like any other candidate: quotations within 24 hours with assumptions declared; stock samples in 3–4 days and custom first samples in around 7 days; stock programmes from 100 pieces and custom development from 300–500 pieces per style; final inspection to AQL 2.5. Certifications sit where they belong in this article's logic — with the partner facilities, not with us. Before an order is placed, we check the certificate holder, its scope and its validity against what the order actually requires, which is the same holder-scope-validity question this guide tells you to ask.

The limits deserve the same plainness. We cannot make your weighting decisions — what MOQ, price corridor and construction mix your brand needs is your call, and a selection run on someone else's weights produces someone else's supplier. Coordination is the product: a buyer who wants to own a direct, named factory relationship is better served running this guide's process alone. Our partner pool is not the whole market — if your product needs a capability outside it, the honest answer is a no at the screening stage, not a stretch after a deposit. And the certificates you will ask about are never ours: they belong to the facilities, and checking them remains part of your vetting, whoever coordinates.

The criteria catalogue at a glance

CriterionWhat to checkStrong answer looks like
Stretch-fabric competenceFabrics run regularly; reference styles in your product family; elastane handling in cutting, sewing and pressingNamed compositions and weights, comparable styles shown, technical questions answered fluently
Construction matchSeamless, cut-and-sew, bonded — which run on the facility's own lines, which would be subcontractedCapabilities named per line, subcontracting declared openly, missing capabilities answered with a plain no
Development capabilityTech-pack literacy, pattern-making and grading, fit-sample process, lab-dip handlingA described sampling sequence with named responsibilities — and questions back about your spec
MOQ fitMinimums per style, colour and size ratio — and the reasoning behind themMOQ logic explained through fabric and dye lots, with honesty about volumes that do not fit
Price structureWhat the quote includes: fabric, trims, packaging, testing; incoterm, payment terms, quantity assumptionsAn itemised quotation with assumptions declared and a stated validity period
Lead times and capacitySampling, bulk and reorder lead times in writing; peak seasons and shutdown periodsSeparately stated lead times with assumptions — and constraints named unprompted
Compliance documentationWhich certificates and audits exist — OEKO-TEX, GOTS, GRS, amfori BSCI, ISO — held by which facility, what scope, what validityHolder, scope and expiry stated per document, matching the facility that would produce your goods
Colour and quality consistencyLab-dip and dye-lot process, instrumental colour measurement, final-inspection standard, defect-claim handlingA named inspection level such as AQL 2.5 and a described colour-control routine for reorders

Quick answers

What is the difference between supplier selection and supplier vetting?

Selection compares several candidates against one weighted criteria catalogue and ends in a shortlist. Vetting examines a single shortlisted candidate in depth — documents, certificate scopes, a paid sample, a pilot order. Run selection first; vetting effort only pays on candidates that already fit.

Which criteria should be knock-outs?

Anything you cannot trade away: the construction capability your product requires, compliance documentation existing at the facility that would produce it, and any market-specific legal requirement. Keep the knock-out list short — every criterion moved there stops being weighable, and too many knock-outs empty a longlist for the wrong reasons.

How many candidates belong on the shortlist?

Two or three — enough that one failure in vetting does not restart the search, few enough that each gets a proper document check, sample and pilot. A shortlist of one is a decision already taken; a shortlist of six is a longlist wearing the wrong name.

Catalogue / 2026

Sourcing styles for your line? The 2026 catalogue lists every ready-to-develop style — colorways, materials, quote list built in.