TL;DR: A private label swimwear manufacturer builds swimwear to your specification under your brand, rather than selling you a finished catalogue style with a new label. A&J International Apparel has operated as a private label swimwear manufacturer from Dongguan, China since 2006, at a 50-piece minimum per style. Swim carries technical constraints most categories do not, and this guide covers where they bite, what development actually costs, and when a different route serves you better.
Swimwear punishes vague specifications more than any other womenswear category. A dress that runs slightly loose is forgiving. A swimsuit that runs slightly loose is unsellable, because the customer discovers the problem in a fitting room mirror rather than three wears later.
That is the frame worth holding when you evaluate a private label swimwear manufacturer. The question is not who will take your order at 50 pieces. It is who has run enough swim to know where swim goes wrong. Every private label swimwear manufacturer will say yes to a first enquiry; the useful signal is what they warn you about before you ask.
We are A&J International Apparel, founded in 2006 in Dongguan, China. This guide includes the situations where we would tell you not to build swim with us at all.
What a Private Label Swimwear Manufacturer Actually Provides
The term gets used loosely, and the looseness costs brands money. Three arrangements circulate under the same name.
| Arrangement | Whose pattern | Whose fabric | What you can change | Typical MOQ |
|---|---|---|---|---|
| Relabelled stock | Factory’s | Factory’s | Label, colourway, packaging | 50-200 |
| Modified catalogue style | Factory’s | Factory’s shortlist | Above, plus trims and minor lines | 100-300 |
| True private label swimwear manufacturer | Yours | Your specification | Everything structural | 50-300 |
Most disappointment traces back to a brand buying row one while believing it bought row three. Row one is the one sold hardest and understood least. It is a real service with a real place, but the pattern stays with the factory, which means the same body can appear under another brand next season and you have no standing to object.
A private label swimwear manufacturer working at row three develops a block for you. That block is an asset, and who owns it is a question you should settle in writing before sampling starts.
Who Owns the Pattern When You Pay for Development
This is the single clause brands most often leave undefined, and swim makes it more consequential than other categories because a swim block is harder to redraft than a dress block.
A private label swimwear manufacturer that owns your block controls your reorders, because nobody else can reproduce the fit without redrafting it. Our position, stated plainly: if you pay the development cost, the pattern is yours. You can request the digital files, and you can take them elsewhere. Most factories do not volunteer this, and a meaningful number will decline if you ask directly.
Ask three questions before the first sample:
- Who holds the graded pattern files after production, and can they be released on request
- If we part ways, can the block be used by another private label swimwear manufacturer
- Are fabric and trim sources disclosed, or held as factory confidential information
A private label swimwear manufacturer that answers all three without hedging is rare enough that the answers themselves are a screening tool. The third question matters more in swim than elsewhere. Performance fabrics are mill-specific, and a brand that cannot name its mill cannot reorder consistently if the relationship ends.
We covered the broader distinction in private label versus white label clothing, and the pattern ownership logic carries across categories including our private label dress manufacturer programme.
The Technical Constraints That Make Swim Different
Swim is not a dress made of stretchy fabric. Six constraints drive cost, timeline and failure rate, and a private label swimwear manufacturer that cannot discuss all six has not run enough of it.
| Constraint | Why swim is different | What it changes |
|---|---|---|
| Fabric recovery | Chlorine and UV degrade elastane | Mill selection, not just gsm |
| Four-way stretch grading | Sizes do not scale linearly | Grading rules, more fit samples |
| Lining and gusset | Opacity when wet, hygiene | Extra pattern pieces, cost |
| Elastic tension | Determines fit and comfort | Machine setup, operator skill |
| Bust support | Cups, underwire, shelf bra | Component sourcing, tooling |
| Dye and print | Sublimation behaves on stretch | Colour matching sequence |
A private label swimwear manufacturer working across mixed categories will know four of these six from adjacent work. Fabric recovery is the one that only comes from swim itself, and it is where most first-time swim brands get hurt. A fabric that looks identical to a high-tier reference on the roll can lose shape after twenty pool sessions, and the failure shows up as returns six months after you approved the sample.
Ask any private label swimwear manufacturer for chlorine resistance test data on the specific fabric quoted, not on a similar quality. The standard reference is a chlorinated water exposure test, and a factory that has run swim seriously will have the reports on file.
What a Private Label Swimwear Manufacturer Charges for Development
Swim development runs higher than dress development, and brands budgeting from a dress quote get an unpleasant surprise. Any private label swimwear manufacturer quoting swim development at dress rates has either not read your specification or is planning to use a catalogue block. Plan for USD 350-650 per style.
| Item | Range (USD) | Notes |
|---|---|---|
| Pattern making | 90-180 | Higher than woven, stretch drafting |
| Grading across sizes | 60-120 | Non-linear, more complex than woven |
| Proto and fit samples | 120-260 | Swim usually needs three rounds, not two |
| Lab dips and strike-offs | 50-110 | Per colour or print |
| Trim and hardware origination | 30-80 | Rings, sliders, custom labels |
Three fit rounds rather than two is the line brands query most when comparing one private label swimwear manufacturer against another. Swim fit is decided under tension, and tension changes with body position, so a suit that fits standing can fail seated. The third round exists because the second one usually reveals that.
None of this repeats on a reorder in the same block. Our breakdown in how much it costs to make a clothing sample explains why sample rates sit above bulk unit price.
What to Send for a Comparable Quote
Send these seven items and quotes from any private label swimwear manufacturer become comparable. Omit them and you are collecting guesses with different assumptions baked in.
- Fabric — composition ratio, gsm, and whether chlorine-resistant elastane is required
- Full measurement spec — across your size range, taken under stated tension
- Lining specification — full, partial, or gusset only, with opacity requirement
- Support structure — removable cups, sewn-in shelf, underwire, or none
- Hardware — rings, sliders, clasps, with finish and material stated
- Print or dye — sublimation, engineered placement, or solid with Pantone reference
- Packing — individual polybag, hygiene liner, hangtag placement
Item one decides more than the other six combined, because fabric choice constrains what any private label swimwear manufacturer can promise on recovery, opacity and colour. Item two carries a trap. A measurement spec for swim must state whether measurements are taken relaxed or under tension, because the same garment reads several centimetres apart depending on which convention the factory assumes.
Item three is where cost quietly moves. Full lining roughly doubles the pattern pieces in the body, and it is the difference between a suit that stays opaque wet and one that does not.
Quality Clauses Worth Specifying
Write numbers into the order. These are the standards we build to, and they transfer to any private label swimwear manufacturer you compare us against.
- Chlorine resistance tested to a defined exposure cycle, with retained elongation reported
- Colour fastness to seawater and to chlorinated water, grade 4 or above on the greyscale
- UV protection stated as a UPF rating where the fabric is marketed on it
- Seam stretch verified so seams extend with the fabric without popping
- Elastic tension consistent across the size range, checked on graded samples
- Opacity verified wet, not dry, at the stated stretch percentage
Specify these as reported test results on your production fabric rather than as assurances, and any private label swimwear manufacturer that has run swim seriously will produce them without friction. The wet opacity clause is the one brands forget and customers notice first. A white or pale swimsuit that passes a dry inspection can fail entirely once wet, and no amount of fabric quality compensates for a lining decision made too late.
Certification is how a buyer verifies a factory without visiting. Any certificate number can be checked against the public OEKO-TEX database in about a minute, and material claims can be cross-referenced against Textile Exchange standards documentation. Our approach is set out in certified womens clothing manufacturer.
Timeline From First Contact to Delivered Stock
Swim runs longer than most womenswear because of the extra fit round and the fabric testing sequence.
| Phase | Duration | What is happening |
|---|---|---|
| Specification and quote | 1-2 weeks | Spec review, costing, fabric shortlist |
| Pattern and proto | 2-3 weeks | Block drafted, first sample made |
| Fit rounds | 4-7 weeks | Typically three rounds with shipping |
| Fabric, lab dip, testing | 3-5 weeks | Colour matched, performance verified |
| Pre-production sample | 1-2 weeks | Made on the bulk line to bulk method |
| Bulk production | 4-6 weeks | Cutting, sewing, finishing, QC |
A realistic first order with a private label swimwear manufacturer runs 15-25 weeks from signed quote to shipped goods. Reorders in the same block, same fabric and same colours run 5-7 weeks.
Brands targeting a spring launch should have specifications finalised by late summer of the prior year. A private label swimwear manufacturer that promises a first swim order in eight weeks is planning to skip the third fit round or substitute a catalogue block.
When a Different Route Serves You Better
Three situations where hiring a private label swimwear manufacturer is the wrong spend. We would rather say this before sampling than three months into it.
You are testing whether swim sells for your audience at all. Hiring a private label swimwear manufacturer answers a question you have not asked yet. Category demand is a separate question from product demand. Buy a small quantity of relabelled stock, learn whether your customers buy swim from you, then develop once the answer is yes.
You need fewer than 50 pieces per style. Below that, development has nowhere to amortise and the per-unit maths moves toward sample rates. Our reasoning is set out in clothing manufacturer no minimum and small quantity womens clothing manufacturer.
Your range depends on complex bust engineering across a wide cup range. Underwire and multi-cup grading is a specialist discipline closer to lingerie than swim. We build shelf bras and removable cups competently, and we will say so when a range needs more than that.
Where A&J Fits
We work as a private label swimwear manufacturer inside a broader womenswear operation rather than as a swim specialist, and that shapes what we are good for. We are a womenswear factory in Dongguan, China, founded in 2006, running a 50-piece minimum per style. Swim sits alongside dresses, activewear and knitwear rather than as a standalone division, which has one practical consequence worth stating: we hold standing performance fabric in a limited range of weights and colours, and that standing stock is what makes 50 pieces workable instead of 300.
The trade is real. If you need a bespoke colour in a specialty fabric at 50 pieces, the dye lot minimum will not bend for us any more than it bends for anyone, and we will quote you the honest consequence rather than a number we cannot hold.
Related pages include our swimwear manufacturer overview, the womens activewear program hub for adjacent stretch capability, and private label activewear manufacturer for the closest technical sibling. Specification guidance sits in tech pack for clothing, and sourcing groundwork in how to find a clothing manufacturer.
One observation from the sampling room, offered because it costs nothing and saves weeks: brands arriving to a private label swimwear manufacturer from dress or activewear consistently underestimate the third fit round and consistently overestimate how much fabric choice they will have at 50 pieces. Both expectations reset in the first month, and the ones who plan for them from the start ship on schedule.
Frequently Asked Questions
What is the minimum order for a private label swimwear manufacturer?
Most swim factories quote 200-500 pieces per style, and the figure is the first thing that separates one private label swimwear manufacturer from another. A&J runs 50 pieces per style by holding standing performance fabric across common weights, which absorbs the dye lot minimum that normally forces a higher floor. Bespoke colours in specialty fabrics still carry the mill’s own minimum.
How much does swimwear development cost per style?
Plan for USD 350-650 per style across pattern making, grading, three rounds of fit samples, lab dips and trim origination. This sits above dress development because swim grading is non-linear and usually needs a third fit round.
Why does swimwear need three fit samples instead of two?
Swim fit is decided under tension, and tension changes with body position. A suit that fits correctly standing can fail seated or in motion, and the second round is usually what reveals it. The third round confirms the correction.
How do I verify a swim fabric will survive chlorine?
Ask your private label swimwear manufacturer for chlorine exposure test data on the exact fabric quoted, reported as retained elongation after a defined cycle count. Data on a similar quality is not evidence, and a factory running swim seriously keeps these reports on file.
Can I start with one swimsuit style at 50 pieces and add more styles once it sells?
Yes, and it is usually the better sequence. One style at 50 pieces limits development exposure to a single block, and a second style in the same fabric and colour later reuses the lab dip and shares the fabric order, which lowers the second style’s effective setup cost.
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