Barefoot Shoe Sample Revisions: Continue, Reset or Change Supplier?

Why the round count misleads

One round may contain a small logo adjustment. Another may introduce a new last, outsole mould, upper pattern and material package. Counting both as one revision says nothing about the work or risk.

A second sample can fail for different reasons:

• the factory did not follow a clear approved instruction;
• the buyer changed the design after seeing the first sample;
• the original requirement was ambiguous or physically conflicting;
• a material or tooling trial exposed a technical limit;
• the comments were not consolidated, versioned or acknowledged.

Only the first case points directly to supplier execution. The others require a brief reset, an engineering decision or better change control.

Classify every requested change

The sample comments should label each item with one of these classes. That prevents buyer changes from being recorded as factory defects and stops supplier errors from disappearing into a vague “sample not right” message.

Choose continue, reset or change supplier

Continue with the current supplier

Continue when the supplier reproduces comments accurately, explains the cause, provides requested measurements or test evidence, and reduces the open-issue list. The next sample request should have a narrow purpose and a defined approval gate.

Reset the development brief

Reset when the target has changed or the requirements conflict. Freeze the new product architecture, bill of materials, last, outsole, measurement chart and test plan. Close or supersede earlier documents so the next sample is not built from mixed versions.

Pause and investigate

Pause when the sample result cannot be explained. Ask for the actual material batch, process record, mould or pattern revision and internal inspection results. Another sample made without identifying the variable can repeat the same uncertainty.

Consider changing supplier

Changing supplier becomes reasonable when:

• the same factory-controlled nonconformance repeats after a documented correction;
• the supplier cannot identify which revision, material or tooling produced the sample;
• approved inputs are changed without disclosure;
• required testing or traceability evidence is unavailable;
• the needed construction or process is outside demonstrated capability;
• commercial or communication failures prevent a controlled development process.

Do not switch only because a technically difficult prototype needs another controlled trial. A new factory will repeat the learning if the product definition is still incomplete.

Build a revision record that prevents loops

Give every physical sample a unique version and keep the same identifier on the tag, photographs, courier record, comment sheet and test report. The revision table should contain:

• style, size, colour, last, outsole and material revision;
• sample purpose and the questions this round must answer;
• each comment with location, requirement, observed result and owner;
• photograph or drawing reference;
• status: open, accepted, corrected, deferred or cancelled;
• cost, tooling, test and schedule effect of approved changes;
• who approved the result and on what date.

Consolidate feedback before release. Separate emails from design, merchandising and sourcing can ask for conflicting changes. One owner should issue the controlled comment sheet.

ISO 10007:2017 gives guidance on configuration management from concept through the product life cycle. Its principles of configuration identification, change control, status accounting and audit fit footwear sample development well. ISO 10005:2018 covers establishing, reviewing, applying and revising a quality plan.

Define the next-sample gate

Do not request “another improved sample.” State what must be tested or approved. A round may target fit and geometry, material appearance, construction, size grading, outsole performance, packaging or a production-representative pre-production build.

If a change can be reviewed through a swatch, drawing, component or local test, do not always rebuild the full shoe. If interactions matter, such as upper stretch with lasting or outsole compound with groove geometry, approve the complete assembly.

Protect the project if you change supplier

Before moving, identify who owns the last, mould, patterns, artwork, test reports and physical samples. Confirm whether tooling can move, whether the new supplier can use it, and which confidential files may be shared.

Create a clean transfer pack instead of forwarding the whole message history. Include the current tech pack, bill of materials, measurement chart, approved and rejected sample records, open risks, test methods, tooling status and a list of superseded files. The new supplier should acknowledge the baseline before quoting or sampling.

Use the sample approval workflow to define gates, the custom development scope to identify structural changes, and the OEM/ODM process for the production handoff.

Frequently asked questions

How many shoe sample rounds are normal?

No single number is normal across projects. A colour update and a new last-plus-outsole program have different development needs. Track issue closure, change ownership and evidence instead of judging the project by round count.

Should I pay for a factory correction sample?

Responsibility depends on the agreement and cause. Separate clear supplier nonconformance from buyer changes, ambiguous inputs and engineering trials, then apply the written sampling terms.

Can I approve a sample with open comments?

Only if the approval record states which comments remain, how they will be verified and whether bulk work may start. Do not use an unqualified “approved” status when a production-critical item is still open.

Primary references

• ISO 10007:2017, configuration management guidelines
• ISO 10005:2018, quality-plan guidelines
• ISO/TS 20952:2024, upper-component performance requirements
• ISO/TS 20939:2024, outsole-component performance requirements