How to Order a Clothing Sample from a Manufacturer (Complete Guide 2026)

TL;DR

• Sampling is not optional. Every reputable factory requires at least a pre-production sample before bulk. Skipping it guarantees problems in the final shipment.
• Four main sample types. Proto, fit, size set, and pre-production (PP). Each serves a specific purpose and happens at a specific stage. You don't need all four for every project.
• Budget 2 to 3x bulk unit cost per sample. A garment that costs €15 to manufacture in bulk will cost €30-€45 per sample due to manual cutting, custom patterns, and machine setup.
• Plan for 2 to 3 rounds. Most new styles require 2 to 3 sample iterations before a PP sample is approved. Each round takes 7 to 14 days in Portugal.
• Your tech pack determines sample quality. An incomplete brief produces an inaccurate sample. CITEVE (2024) attributes 60% of QC failures to incomplete tech packs. Every ambiguity becomes a defect.
• The PP sample is your legal reference. Keep it. It's the standard against which the bulk shipment is compared and your grounds to reject if production doesn't match.
• Sample fees are often refundable. Many Portuguese factories credit sampling costs against your first bulk order above 100-300 units. Always clarify upfront.
• Portugal sampling is roughly 4 to 6 weeks faster than Asia. Same factory speed, dramatically faster courier transit between rounds.

Why Sampling Exists (and Why You Can't Skip It)

Here's a scenario that plays out dozens of times a week in the fashion industry: a brand founder has a design, sends reference images to a factory, gets a quote, and places a production order. Six weeks later, 200 garments arrive that don't fit right, use the wrong construction technique, and have a finish that looks nothing like the reference photo.

This is avoidable. It's avoided by sampling.

Sampling is the bridge between what you designed and what gets manufactured at scale. It's where the pattern is built, the construction is tested, the fit is assessed, and the material quality is confirmed before a single unit of bulk production is cut. Every professional factory requires it. Attempting to bypass it is the most reliable way to waste both your budget and your production window.

In our placement records since 2021, the brands that ran 2-3 properly disciplined sample rounds reported defect rates of 1-3% on bulk shipments. The brands that pushed for "just send us the order, we'll skip sampling" averaged 8-22% defect rates and lost the price gap many times over in rework and returns.

This guide walks you through the full sampling process: what each stage does, what it costs in Portugal, how long it takes, what to send the factory, what to inspect when samples arrive, and how to give feedback that actually moves things forward.

Before You Order a Sample: What You Need to Prepare

The tech pack

The tech pack is the single most important document in your production relationship. It's your garment's blueprint, the complete technical specification that tells the factory exactly what to make. A complete tech pack includes:

• Technical flat sketches (front, back, detail views)
• Points-of-measure (POM) table with grading rules across all sizes
• Construction notes (seam allowances, stitch type and SPI, hem finish)
• Fabric specifications (weight in GSM, composition, weave or knit structure)
• Trim details (zippers, labels, buttons, thread colours, elastic specs)
• Colour references (Pantone codes or physical colour standards)
• Care label content compliant with EU Regulation 1007/2011
• Acceptable measurement tolerances (typically +/- 1 cm for knits, +/- 0.5 cm for wovens)

Factories receive dozens of enquiries per week. A complete tech pack signals professionalism and gets your project taken seriously. An incomplete brief produces an inaccurate sample, and every revision round costs time and money.

If you don't have a tech pack, get one made before approaching factories. Most Portuguese factories will quote politely on incomplete briefs and then iterate at your expense; better to arrive with a complete document.

The reference garment

If you have an existing garment with a fit you love, a tee that drapes perfectly, a jacket with the right proportions, ship it as a reference alongside your tech pack. A physical reference is worth pages of written specification. Factories can feel the weight, assess the seam construction, and understand the intended result immediately. We've watched first-time sample turnaround times drop by 30% when a physical reference accompanies the brief.

Fabric swatches or specifications

If you have specific fabric requirements, source swatches or define the exact specification before ordering the proto. If your intended fabric isn't available yet, sampling in a substitute fabric (similar weight and structure) is standard practice for the proto stage. For fit-critical garments (tailoring, performance wear), insist on near-final fabric from the fit-sample stage onward.

Realistic timeline expectation

Before placing a sample order, mentally commit to the timeline:

• New style with new factory: 6 to 12 weeks from brief to approved PP sample
• New style with familiar factory: 4 to 8 weeks
• Reorder of approved style: 2 to 3 weeks (PP only)

If your launch window is 8 weeks away and you're starting from scratch, you're already late. Plan accordingly.

The Four Main Sample Types

Stage 1: Proto sample (prototype)

What it is. The first physical version of your garment, made from substitute fabrics that approximate your final material in weight and structure. Not necessarily the right colour or final composition.

What it's for. Assessing the silhouette, proportions, construction method, and overall design intent. Not meant to look finished. Meant to test whether the pattern works.

What to check.

• Overall silhouette: does it match your design intent?
• Seam placement and construction
• Proportion: are the pockets, collar, and cuffs where they should be?
• Major fit issues
• Construction approach (factory may have used a method that won't scale)

Timeline: 7 to 14 days from tech pack submission to arrival in Portugal.

Cost: 2 to 3x bulk unit cost. A €15 hoodie equates to a €30-€45 proto sample.

Pro tip. Don't reject a proto because it's in the wrong colour or fabric. It's not supposed to look finished. Assess structure and construction only.

Stage 2: Fit sample

What it is. Made using the actual (or close-to-actual) pattern from the approved proto, typically in final or near-final fabrics. Focuses on how the garment fits a real body.

What it's for. Confirming measurements, assessing drape and movement, testing how the garment looks and feels when worn. This is where you do a real fit session: put it on a fit model or a person whose measurements match your target size.

What to check.

• All key measurements against your specification sheet (within tolerance)
• How it moves: can the wearer sit, raise arms, move freely?
• Fabric behaviour: does it drape as expected?
• Finishing quality: are hems straight, zippers smooth?
• Label placement and care content

Timeline: 7 to 14 days per round.

Cost: 2 to 3x bulk unit cost.

Note. This stage is sometimes combined with the proto stage for simple garments. For complex or fit-critical garments (fitted dresses, tailored jackets, performance wear), it's always a separate stage.

Stage 3: Size set sample

What it is. Samples produced in every size the style will be sold in (e.g., XS through XL).

What it's for. Validating that grading is correct, that scaling the pattern up and down from the base size produces garments that fit correctly across all sizes. A pattern that fits perfectly in Medium can still produce a Large that's too narrow in the shoulders.

When you need it. Only after the proto and fit samples are approved. Never order a size set until you're satisfied with the base size fit. If the Medium doesn't work, the Small and XL will be wrong too.

Cost: One sample per size x 2 to 3x unit cost.

Timeline: 10 to 14 days.

Skip it if. You're producing in a single size for initial testing, or you're a very experienced brand with confidence in your grading rules.

Stage 4: Pre-production sample (PP sample / Golden Sample)

What it is. Produced on the actual production line using all final approved materials. The exact fabric, the exact trims, the exact labels, the exact wash treatment.

What it's for. This is your final quality check before bulk production begins. It confirms that the factory's production line can reproduce the approved sample consistently. It is also your legal reference document.

Critical rule. Keep the PP sample physically in your hands after approving it. When your bulk shipment arrives, compare it directly against the PP sample. If there are discrepancies, you have grounds for a quality claim based on failure to match the approved standard.

Timeline: 10 to 14 days after all materials are confirmed.

Cost: 2 to 3x unit cost.

In our placement records, brands that lost or discarded the PP sample post-approval consistently struggled to win quality disputes against factories. The PP sample is the single most important physical document in your supplier file.

Sample Types Summary Table

How Many Sample Rounds Should You Expect?

The number of rounds depends on three factors: garment complexity, brief quality, and your tolerance for incremental changes.

Sources: PCF placement records 2024-2026.

On average, brands go through 2.3 rounds of sampling before bulk production approval for a new style in our pipeline. Experienced brands working with long-term factory relationships consistently hit PP approval in 2 rounds. First-time brand founders working from a vague brief typically need 4 to 5.

The single biggest variable: tech pack completeness. Brands that arrive with a CITEVE-grade tech pack hit 2 rounds. Brands that arrive with a sketch and verbal description hit 4-5.

What Sampling Costs: Realistic Budget in Portugal

The 2 to 3x rule

Sampling costs more than production because it requires manual work that bulk production automates: custom pattern cutting, hand-guided assembly, machine setup for a single garment, and the factory's time managing a one-piece job alongside bulk orders.

Budget per style, three-stage development:

For complex garments (outerwear, tailored pieces, performance wear), total sampling can reach €1,200-€2,500 per style when custom materials and multiple revision rounds are involved.

Sample fee refundability

Many Portuguese factories offer to credit sampling fees against your first bulk order above a minimum threshold (typically 100 to 300 units). Always ask upfront:

• Is the sample fee refundable?
• What bulk order size qualifies for the credit?
• Does the credit apply per style or per order?
• What's the credit ceiling per sample (some factories cap at €150-€250)?

In our experience, refundability is roughly 50/50 across the Portuguese factory pool. Specialist workshops more often refund; export-tier factories rarely do.

Hidden sampling costs

Beyond the per-sample fee, budget for:

• Courier shipping per round: €25-€80 EU, €100-€220 to North America
• Fit model time: €60-€120 per session if you don't have an in-house model
• Photography of the sample for documentation: internal cost
• Your team's time: measuring, photographing, writing comments
• Pattern revision fees: €50-€200 per significant pattern change

Realistic all-in cost for a 3-round sampling cycle on a single moderate-complexity style: €1,400-€2,800 per style.

The Sampling Workflow Step by Step

Step 1: Submit your brief

Send your tech pack, reference garment (if available), and fabric specifications. Include your target timeline and bulk quantity so the factory can assess priority. Specify whether you want stock-fabric proto or final-fabric proto (latter takes longer and costs more but eliminates a round of fabric translation).

Step 2: Confirm the quote and timeline

The factory confirms sampling cost, timeline, and any materials they'll need to source. For non-stocked fabrics, factor in 2 to 4 weeks of sourcing time before sampling begins. Get the quote and timeline in writing before you transfer the sample fee.

Step 3: Approve the proto

When the proto arrives, assess construction, proportion, and silhouette. Not colour or finish. Provide clear, specific feedback (template below). "The shoulder seam sits 2 cm too far forward" is actionable. "This doesn't look right" is not.

Step 4: Iterate to fit sample

After proto corrections, the fit sample is produced in final or near-final fabric. Run a proper fit session: measure every key dimension against your spec sheet and document discrepancies with photos. Test movement (sit, reach, walk).

Step 5: Approve the PP sample

The PP sample is your final checkpoint. Assess everything: construction, measurements, materials, labels, finishing, packaging. If it passes, sign off and release the bulk production order. Keep the PP sample physically.

Step 6: Monitor production with TOP sampling

Some factories pull a TOP (Top of Production) sample from the bulk production line partway through. This is an early-warning system. It catches issues before all 500 units are sewn incorrectly. We recommend insisting on TOP sampling for first-run productions over 300 units.

Sample Feedback Template (the one we use)

Vague feedback is the single biggest cause of unnecessary sample rounds. Use this template for every sample round.

SAMPLE FEEDBACK - [Style] - Round [N] - [Date]

Overall result:  APPROVE / APPROVE WITH MINOR REVISION / REVISE / REJECT

CONSTRUCTION:
- [Specific issue with location and fix]
- Example: "Right armhole has skipped stitches at 3cm below
  shoulder seam. Tighten thread tension on machine, re-sew section."

FIT (against tech pack POM table):
- Chest width:   target 56cm +/-1cm. Measured: 58.5cm. REVISE: reduce 2.5cm.
- Sleeve length: target 64cm +/-1cm. Measured: 64.2cm. PASS.
- [Continue for every POM]

FABRIC AND HAND:
- [Comments on weight, drape, surface]

TRIMS AND LABELS:
- [Specific verification: zipper, drawcord, branded label, care label]

COLOUR:
- [Pantone reference vs sample. Photograph in daylight.]

PHOTOS ATTACHED:
- 6 reference photos with annotations

ACTION REQUESTED:
- Revise items 1, 3, and 5
- Resubmit sample by [date]
- Confirm receipt of feedback within 48h

Brands that send this template structure cut sampling timelines by roughly 25-30% in our placement records compared to brands sending freeform email comments.

Common Mistakes That Extend the Sampling Timeline

Vague feedback. "I don't like it" sends the factory to guess at what you want. "The armhole is 3 cm too high and the hem should be 2 cm longer" gets the next sample in 10 days.

Approving a sample that isn't right. Some founders rush to production because they're excited. Then 300 units arrive with the same issue. The sampling stage exists precisely to prevent this. If you have any doubt, do another round.

Changing specs mid-sampling. Each spec change resets part of the work already done. Finalise your design before sampling begins. Changes during sampling are expensive and time-consuming. Mid-sampling spec changes typically add €300-€800 and 2 to 3 weeks per style.

Not checking labels and trims. The PP sample is your last chance to confirm your care label composition is correct, branding label placement is right, and zippers and buttons are exactly what you specified. Many quality disputes trace back to label or trim issues that should have been caught at PP.

Ignoring the PP sample. The most common quality dispute in apparel manufacturing is "the production doesn't match what I ordered." That claim requires a PP sample as evidence. Without one, you have no reference point and limited leverage.

Approving over email without physical inspection. Photographs lie. Lighting hides defects. Insist on physical samples in your hands before approving anything. The €40-€80 courier fee is trivial against a 200-unit reorder.

Skipping the size set on graded styles. Brands that skip the size set on size-graded products report fit-related return rates 2 to 3x higher than brands that invest in the size-set sample.

Not photographing the approved PP for your records. Even if you keep the PP, take 8 to 12 detailed reference photos in daylight before storing it. Photos travel; physical samples don't.

Working with Portuguese Factories on Sampling

Factories in Portugal's textile cluster, particularly in Braga, Porto, Guimarães, and Vila Nova de Famalicão, are experienced working with international emerging brands through the sampling process. Many offer comprehensive onboarding that includes tech pack review, fabric recommendation, and sampling project management.

For EU-based brands, the practical advantages of Portuguese sampling are significant: each revision round requires 2 to 3 day courier delivery rather than the 2 to 3 week shipping cycle from Asian factories. A 3-round sampling process that takes 10 to 12 weeks from China can complete in 5 to 6 weeks from Portugal. Not because the factory works faster, but because the samples travel faster.

For US, UK, and other non-EU brands, Portugal still beats Asia on transit: 4 to 6 day DHL or FedEx shipping versus 7 to 14 day combined transit and customs from China. Sample feedback cycles compress accordingly.

Some Portuguese factories offer digital (3D) sampling as a pre-physical step using CLO3D or Browzwear. This doesn't replace physical sampling for approval but can identify major construction issues before a physical proto is made, reducing the number of physical rounds needed by roughly one in our experience.

The August consideration

Most Portuguese factories close for 2 to 3 weeks in mid-August for the traditional summer break. The shutdown ripples through fabric mills, dye houses, and trim suppliers. If your sampling timeline crosses early-to-mid August, expect a 3 to 4 week pause regardless of how well-organised your brief is. Lock fabric and trims by mid-July if your sampling cycle will run through August.

Conclusion

Sampling is not a bureaucratic formality. It's the phase of production where your design idea becomes a manufacturable reality. Where the pattern is proved, the fit is confirmed, and the factory demonstrates its capability to produce your product to specification. Brands that invest in proper sampling consistently get better bulk production results. Brands that rush past it consistently get expensive surprises.

The key to efficient sampling is preparation. A complete tech pack, a clear brief, fast feedback turnaround, and a realistic timeline plan are all within your control. The factory's job is to build accurately from what you give them. Your job is to give them something complete enough to build from.

Whether you're ordering your first sample from a Portuguese factory or your fiftieth from an established relationship, the fundamentals don't change: be specific, be responsive, and never release bulk production from a sample you're not fully satisfied with.

Frequently Asked Questions

References

1. CITEVE (2024) - Quality Report on Textile Production
2. ATP - Associação Têxtil e Vestuário de Portugal (2025)
3. BusinessDojo (2025) - Cost to Make a Clothing Sample
4. Visionise (2025) - Sample Types & Timelines
5. Yoke Apparel Manufacturing (2025) - Garment Sampling Guide
6. Gopherwood Clothing (2025) - Garment Samples Explained
7. TechPacker (2025) - Types of Garment Samples
8. ExploreTex (2025) - Clothing Manufacturers Portugal
9. PCF internal sampling records (2024-2026), aggregated across 200+ Portuguese sample rounds

Related reading

• First meeting with a clothing manufacturer
• How to create a tech pack
• Clothing production lead times in Portugal
• Quality control in Portuguese clothing production
• CMT vs full package production
• Common mistakes when starting a clothing brand

Portugal Clothing Factory is an independent sourcing and consulting agency based in Porto and Guimarães. We connect fashion brands with a vetted network of 100+ Portuguese factories. We charge flat fees, take no factory commissions, and reply within 24 hours. See how we work or book a free 15-min call.