From Sample to Bulk Production: A Realistic Timeline for Activewear and Down Outerwear

"How long does it take?" is a fair question with a useless answer unless you break it down. A factory quoting "60 days" is quoting production. It is not quoting the four to seven weeks that come before production starts, and it is not quoting shipping.

This guide sets out the full sequence as we run it — stage by stage, with realistic durations, the decision points where buyers slow things down, and the specific causes of delay we see most often.

The full timeline at a glance

These durations assume a new style, a buyer who responds to comments promptly, and no fabric sourcing complications. They are working figures from our own production planning, not best-case marketing numbers.

Two observations matter more than the individual numbers. First, sampling is roughly a third of the total timeline, and it happens before a single bulk unit is sewn. Second, most of the variance sits in stage 2 — the fit rounds — where the pace is set by how fast comments come back and how precise they are.

Stage 0: tech pack and material confirmation

Before sampling begins, the technical pack has to be complete enough to build from. In our experience this stage is where the largest hidden delay accumulates, because an incomplete tech pack does not stop work — it pushes unresolved questions into the sampling stage, where each one costs days rather than hours.

A tech pack that will not cause delay contains:

• Construction detail — seam types, stitch density, stitch length, and where each seam is used.
• Measurement chart — all points of measure, with tolerances stated rather than assumed.
• Bill of materials — fabric with composition, weight (GSM) and stretch direction; every trim with size and colour.
• Colour references — Pantone TCX or equivalent, with a decision on whether the fabric shade is stock or custom.
• Branding placement — label positions, logo size, artwork files in vector format.
• Intended packaging — polybag, hangtag, folding standard.

For down outerwear, add fill power, fill weight per panel, baffle dimensions and down-proofing requirements. These are specification items, not production details, and they need to be settled before the proto is cut.

Stage 1: proto sample

The proto sample is the first physical garment. Its purpose is to prove the construction is buildable and to establish the baseline shape — not to be sellable, and not to be a perfect fit.

Typical duration is 7–14 days. For down outerwear, add time for baffle construction: a proto with new baffle dimensions needs those panels sewn and filled before the silhouette can be judged, and that is materially slower than a knit proto.

What buyers should look at on the proto:

• Construction feasibility — does every seam in the tech pack actually work in this material?
• Hand feel of the real material — the fabric specified on paper often feels different in hand.
• Proportion — the relationship between length, shoulder, waist and hem, before fit detail is refined.
• Where the specification is ambiguous — the proto is the cheapest place to discover that two people read the tech pack differently.

Stage 2: fit sample and fit rounds

The fit sample is where the timeline is most elastic. One round takes about 10–14 days including the buyer's review. Three rounds takes 25 days or more. This stage alone can account for a four-week swing in total lead time.

Discipline in this stage is worth more than pressure anywhere else. Three practices reduce rounds:

Comment in one pass, not in sequence

Consolidate all feedback — fit, construction, trims, labelling — into a single response per round. Feedback that arrives in three separate emails over five days converts one round into three, because each new point requires reopening work the factory has already moved past.

Use fit models consistently

Changing the person wearing the sample between rounds makes the rounds incomparable. If round two is fitted on a different body than round one, you are not refining a fit — you are starting again and comparing the results as if they were the same measurement.

State tolerances, not preferences

"The waist feels tight" produces a guess. "Waist relaxed measurement should be 68 cm ±1 cm, current sample measures 64 cm" produces a correction. The second version resolves in one round; the first frequently does not.

Stage 3: size set and grading

Once the fit is approved in the base size, the pattern is graded across the full size range and a size set is produced — typically one garment per size, though some buyers request only the extremes.

Duration is 7–12 days. The purpose is to verify that the grade rules produce sensible garments at the ends of the range, not only in the middle. This is where problems that were invisible in the base size surface: a waistband that works at M but gaps at XS, or a baffle arrangement that works at S but distorts at XL.

Down outerwear adds a panel-count problem: quilt lines and baffle divisions need to scale in a way that keeps fill distribution even. Review the size set for fill balance, not just for measurement accuracy.

Stage 4: PP sample and approval

The PP (pre-production) sample is the most important sample in the sequence. It must be produced with production materials on production machines — the actual fabric from the actual dye lot, the actual trims, the actual thread, on the line that will run the order.

Duration is 7–12 days. A PP sample that is hand-made in the sample room using leftover materials is not a PP sample; it is a third fit sample with better branding. The distinction matters because the PP sample is the reference against which bulk is inspected.

What approval of the PP sample authorises:

• Bulk cutting of the full order quantity
• The specific dye lot in use becomes the contractual colour reference
• The PP becomes the golden sample held for bulk comparison
• Any deviation in bulk versus PP becomes a measurable defect

Stage 5: bulk production

Bulk runs 35–60 days for a typical order, depending on quantity, style complexity and the number of colours. Our own production floor follows a consistent sequence: fabric inspection and relaxation, spreading and cutting, then sewing by section, then finishing and quality inspection.

Two factors drive the duration more than quantity alone:

• Colour count. Each colour is a separate cutting lay and a separate bundle sequence. Three colours take meaningfully longer than one at the same total quantity.
• Assembly complexity. Down outerwear with baffle construction and multiple colour-matched trims runs slower than a leggings style, because each filled panel adds a handling step.

For reference on the equipment and process stages involved, see our production workshop and equipment documentation, which shows the cutting, sewing and finishing lines referred to above.

Stage 6: inspection and shipping

Final inspection, packing and loading typically take 7–14 days before the goods leave the factory. This includes the final random inspection, carton packing to the agreed standard, and documentation.

Build inspection into the plan rather than treating it as the last step. Inspection that happens after goods are packed means unpacking to check. Where an order is large or the style is new, a mid-production inspection — after a defined percentage of the order is complete — catches systematic problems while correction is still possible.

What actually causes delay

Delays are rarely caused by slow sewing. Based on our production records, they cluster into a short list of recurring causes:

Note the pattern in the third column. The majority of delay originates on the buyer side — not from the factory being slow, but from decisions arriving late or changing after they were made. This is the single most actionable insight in this guide: if your lead time is slipping, audit your own approval turnaround before you press the factory.

How to compress the timeline

The timeline can be shortened, but almost all of the recoverable time sits in the front of the sequence rather than the back.

What does not work: pressuring the factory to run bulk faster. Bulk production duration is a function of machine time, operator skills and drying or finishing requirements. Compressing it usually means adding overtime, which raises cost and reduces consistency — it does not create weeks out of nothing.

Frequently asked questions

How long does sampling take for a new activewear style?

Plan on 4–7 weeks from tech pack confirmation to approved PP sample. That covers the proto, one to two fit rounds, the size set and the PP. If your tech pack is precise and you use an established base block, the lower end is realistic.

How many fit samples should I expect to need?

Two rounds is the realistic default for a new style in a new fabric. One round is achievable when the specification is tight and the pattern block is known. Three or more rounds usually indicates a specification problem rather than a genuinely difficult fit — worth investigating rather than simply repeating.

Does down outerwear take longer than activewear?

Yes, typically at both ends. Baffle construction adds time to the proto and to bulk sewing, and down outerwear generally carries more colour-matched hardware, which adds material lead time. Add roughly two to three weeks against a comparable knit style.

Can production start before the PP sample is approved?

It can be instructed, but it should not be. Once cutting has started, a problem found at PP becomes a re-cut rather than a correction, and the delay is measured in weeks. If the schedule is genuinely at risk, the place to recover time is in the sampling rounds, not by starting bulk early.

What is the biggest single cause of lead time overrun?

Late or changing decisions on the buyer side — incomplete specification, fragmented comments, or a specification change after PP approval. In our records these account for more delay than factory capacity, machine breakdown or material shortage combined.

Should I plan around Chinese New Year?

Always, if your ship date falls in the first quarter. Production stops for around two weeks and capacity ramps back gradually. Work backwards from the holiday to set your sampling milestones rather than assuming normal throughput through January and February.