Moving a Pattern to a New Supplier: What Transfers and What Does Not (2026)

Quick answer. A pattern does not transfer between suppliers, but a standard does. What moves is the set of measurements and tolerances, the construction detail, the approved sample and the specification — which means a new supplier is developing to the same numbers rather than receiving the same block.

1. What actually transfers

• The measurements and tolerances. Points of measure, the size set and the permitted deviation, expressed in figures.
• The construction detail. Seam types, stitch density at the stress points, waistband construction and edge finish.
• The materials specification. Fibre, blend ratio and weight in g/m², plus the trims on their own list.
• The approved sample. Sent as a reference rather than a pattern.
• The labelling and pack. Content per market and the pack format, which are the buyer’s own assets rather than the supplier’s.

2. What does not transfer

• The block itself. A pattern is developed for a supplier’s own method and equipment, and it does not behave the same way on another line.
• The grade. Which follows from the block, so a new grade is developed rather than copied.
• The marker and the cutting plan. Which are the supplier’s own, and which affect consumption and therefore cost.
• The fit. Which is the outcome of the block and the grade together, and settles over sampling rounds.

3. Why sending the pattern is not the answer

• It belongs to the previous supplier. A pattern developed on their line is their asset unless the ownership position says otherwise.
• It does not fit the new equipment. Which is why a transferred block still needs its own sampling and grading.
• It shortens the sample round, not the development. The new site still develops its own block and grade to land on the same measurements.
• It can be a compliance problem. Since the two suppliers or their subcontractors may be in the same market.

4. The transition that works

• Transfer the standard, not the pattern. The spec sheet, the measurements, the construction detail and the approved sample.
• Ask the new site to develop to the numbers. Which is a normal development project with its own sampling rounds.
• Measure the sample against the standard. At the points of measure, with the tolerances applied rather than the nominal figures.
• Seal a new reference at the new site. Because the two blocks differ slightly by definition, and each site’s approved sample describes what it actually makes.
• Run both live for one order. Which is what makes the transition measurable rather than hopeful.

5. Keeping the two consistent

• The specification in figures. So the two sites are held to the same numbers rather than to a description of a garment.
• The measurements and tolerances. Which define the standard the two blocks are measured against.
• The QC routine. The same inspection stages, so the two sites can be compared.
• The care instruction and the pack. Which follow the construction, and stay identical where the construction does.
• The gap. Where the two inevitably differ, using one site for a style rather than splitting it, so a customer never sees both.

6. Common errors

• Asking the old supplier for the pattern. Which raises an ownership question that should have been settled at the outset.
• Assuming the same measurements produce the same fit. They do not, because the block and the grade differ.
• Skipping the new sampling rounds. Which is how a transferred standard arrives as a different garment.
• Using the old site’s sealed sample as the new site’s reference. Each site needs the reference that describes what it makes.
• Splitting a style across both sites immediately. Which exposes the differences to the customer rather than managing them.
• Not measuring at the tolerances. A garment within tolerance and one on the nominal figure are both “to standard” and are not the same garment.

7. How to compare the two sites

• On the same points of measure. Measured on the finished garment rather than on the paper.
• On the same construction detail. Seams, waistband and edge finish, item by item.
• On the same material specification. Fibre, blend ratio and weight, so any difference is attributable to the construction.
• On the same QC routine. So a difference in the records means a difference in the process.
• On the measured gap. Which is the number that decides whether they can be treated as equivalent.

Published: 2026-10-16 · Xiamen Unitex Trade Co., Ltd. — OEM & ODM underwear sourcing partner

Unitex Underwear (Xiamen Unitex Trade Co., Ltd.) — OEM/ODM underwear sourcing and supply-chain partner in Xiamen, China; in the trade since 2009, incorporated in 2013. Based in the Xiamen–Quanzhou–Jinjiang knitwear cluster, Fujian Province, south-east China.