Testing a shoe on laboratory equipment
Testing

Updated 2026-10-15 · ~7 min read

How an athletic shoe actually gets tested.

A test report names one standard and one sample. This page walks through the three layers a shoe passes through — material, whole shoe and chemical — so you can tell what a result covers, and what it does not.

Testing is not one event. It happens on three levels, often in different rooms and sometimes in different laboratories — which is why one shoe is tested more than once, at more than one stage.

Three layers of testing

LayerWhat it testsWho usually asks
Material & componentUpper, lining, outsole, midsole and adhesives, as separate samplesFactory QC; the brand's lab
Whole shoeThe finished pair, on a flexing machine or a slip rigBuyer QC; third-party lab
Chemical & regulatoryRestricted substances, split per homogeneous materialCompliance team; market rules
Which layer a result comes from matters more than the pass stamp on it.

What gets tested on a shoe

The physical tests that appear in most athletic-footwear specifications. Pass values are agreed per order; the standard families are named so your own lab can map them.

TestWhat it looks atStandard family
Whole-shoe flexingCracking, delamination and stitch failure after repeated bendingSATRA TM92 · ISO 17707 · GB/T 3903.1
Sole adhesion (peel)Force to separate the upper from the outsoleSATRA TM411 · ISO 17708 · GB/T 3903.3
Outsole abrasionMaterial lost after a set number of revolutionsSATRA TM174 · ISO 4649 · GB/T 3903.2
Slip resistanceGrip on dry and on wet surfacesSATRA TM144 · ISO 13287 · GB/T 3903.6
CushioningEnergy absorbed under a drop weightSATRA TM142 · GB/T 30907
Colour fastnessTransfer onto a white cloth, dry and wetISO 105-X12 · ISO 11640
Read an abrasion number next to the hardness and density of the same compound. Two outsoles can post identical wear figures and behave differently on the road.

Chemical screens and the homogeneous-material rule

A limit such as 0.1% applies per homogeneous material, not to the shoe as a whole. An athletic shoe is typically split into eight or more samples — upper, lining, outsole, midsole foam, adhesive, ink, laces, hardware — and each is tested on its own.

  • REACH (EU): substances of very high concern and restricted substances; the candidate list is revised about twice a year, so every report carries a date.
  • CPSIA (US, children's products): lead and phthalate limits, tested by a lab the CPSC recognises.
  • Proposition 65 (California): a warning regime, not a ban; the list runs to hundreds of substances.

Who tests it, and what the report proves

Who runs itWhat you getWhat it is not
Factory QCIn-line and final inspection recordsAn independent opinion
Buyer QC or third-party inspectorAn inspection report with photographsA laboratory test report
Accredited laboratoryA test report against one named standardA product certificate

Three things to write down before you ask anyone for paper:

  • A test report is not a certificate. One is a result on one sample; the other is a status.
  • AQL is a sampling agreement, not a guarantee. It is set per order, and critical defects are normally inspected at 100%. The sampling standard is ISO 2859-1, identical to GB/T 2828.1.
  • Instructions follow the market, not the factory. Name the destination market before the tests are chosen.
Inspection on the production floor
FAQ

Testing methods — questions buyers ask.

Show all 4 questions

Do you have in-house testing?

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The manufacturing partner runs an in-house lab for day-to-day material and shoe checks. Market-specific reports are arranged with accredited third-party laboratories, and shared under NDA.

Can you test against my market's requirements?

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Name the destination market in the brief and we will say which file types apply. We do not invent certificate numbers on this page; reports are issued per order and per material.

What is the difference between a test report and a certificate?

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A test report covers the sample submitted, against one named standard. A certificate covers a management system or a product status. They are separate documents with separate jobs.

Who decides the AQL?

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The buyer and the supplier agree it per order — typically critical 0, major 2.5 and minor 4.0 as a starting point — and it is written into the purchase order.

Tell us the market. We will say which tests apply.

Market-specific reports, laboratory results and inspection records are shared under NDA — per order and per material. We do not list logos we cannot show.

Send the brief. A human replies within 12 working hours.

Name and work email are enough. Add the market, a reference shoe and a target quantity if you have them.