Guides on how
garments get made.

Short guides on technical pages, measurements, materials, grading and sample approval, through to sending a design to a factory. Each one answers a single question.

Tech packs

What the pages are, and the order to write them in.

  1. 01 / Guide

    What is a tech pack?

    The set of pages a factory uses to sew a garment the same way every time, and how that differs from a sketch or a 3D sample.

    Read the guide
  2. 02 / Guide

    How to make a tech pack

    A practical order for turning a sketch and its decisions into the pages a factory can sew from.

    Read the guide
  3. 03 / Guide

    What does a tech pack look like?

    A tech pack is a small stack of pages, each answering a different factory question, rather than one drawing.

    Read the guide
  4. 04 / Guide

    What is a garment spec sheet?

    A garment spec sheet records finished measurements for the base size at agreed points on the garment.

    Read the guide
  5. 05 / Guide

    What is a BOM in apparel?

    An apparel BOM lists the materials and trims in a garment, with references, placements and quantities.

    Read the guide

Patterns and sizing

How one base size becomes a size run.

  1. 06 / Guide

    What is pattern grading?

    How a base size steps through a size run, and how grade rules, a base plus a step, tell a factory what to do.

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  2. 07 / Guide

    What are grade rules?

    Grade rules describe the steps from an approved base size to the rest of the size range.

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Drawings and the role

The drawing a factory measures from, and the person who writes the pages.

  1. 08 / Guide

    What are technical flats?

    The clean front and back drawings a factory reads for seams, proportion and detail, and how they differ from a sketch.

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  2. 09 / Guide

    What is a technical designer?

    The person who turns a design into specs, grade rules and fit comments a factory can work from.

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Samples and the factory

How to approve a garment, then send clear instructions to a factory.

  1. 10 / Guide

    What is a 3D virtual sample?

    A 3D virtual sample makes the garment visible as a form so its look and fit can be reviewed before fabric is cut.

    Read the guide
  2. 11 / Guide

    How to send a design to a factory

    Send the factory a coherent tech pack after approving the garment, with the current version and any open questions identified.

    Read the guide