Chapter 01 · Tech packs
What Is a Tech Pack? A Plain Field Guide for Product Founders
Published by Cydney Mar. Last updated November 2026.
A tech pack is the technical document a factory uses to quote, sample and produce your product. If you have been asking what is a tech pack, think of it as the instruction manual that turns your idea into the same finished item every time.
This field guide, published by product development strategist Cydney Mar, explains what is a tech pack in fashion and beyond, what goes inside one, and how it fits a wider product development strategy. Cydney calls a clear, professional tech pack the difference between a sample that is right the first time and months of expensive back-and-forth.
Definition:A tech pack (short for technical package) is a set of documents that describes a product's design, measurements, materials, construction, labeling and packaging in enough detail for a supplier to make it consistently at volume.
Quick answers
- What is included in a tech pack?
- Flat sketches, a bill of materials, measurements with tolerances, size grading, construction notes, colorways, labels and packaging.
- How much should a tech pack cost?
- Freelance tech packs often cost £30 to £200, mostly under £100, per Fabrickly's 2026 comparison.
- Can ChatGPT make a tech pack?
- It can draft written sections, but it cannot measure your product or confirm what a factory can make. An experienced check is still needed.
What is a tech pack in fashion?
A tech pack in fashion is the blueprint for a garment. It is the file a pattern maker and factory follow to cut, sew and finish a sample, and then to repeat that sample in bulk production. So when people search what is a tech pack in clothing or what is a fashion tech pack, the answer is the same: one document that holds every decision about the garment.
A garment tech pack leans harder on numbers than most. It needs points of measure for each size, tolerances that say how far a measurement can drift, and a grading chart that scales the pattern from small to large. It also covers fabric, thread, zippers, buttons, labels and how the finished piece is folded and bagged.
Does every product need one? Garments need the most detail. Simpler products, like a single-size candle or tote, may only need a short spec sheet. If a factory will quote and make it for you, it needs a written spec of some kind.
01Fact panel
What is a tech pack? The definition card
A tech pack is the shared reference between a brand and its manufacturer. In this Cydney Mar field guide we define it as the complete written and visual specification of a product: what it looks like, what it is made of, how big it is in every size, how it is put together, and how it is labeled and packed.
Its purpose is to remove guesswork. A factory quotes from it, a sample room builds from it, and production checks every unit against it. When the tech pack is vague, the factory fills gaps with its own assumptions, and those assumptions appear in the sample. That is why Cydney Mar lists production-ready tech packs "that factories actually understand" as core product development work, alongside sampling, sourcing, costing and production readiness.
02Fact panel
Tech pack numbers worth knowing
- £30 to £200 per tech pack from a freelance designer, depending on complexity, with most under £100. Source: Fabrickly, 2026.
- 8 to 10 minutes is how long The F* Word says its AI tool takes to build a factory-ready tech pack draft, before validating measurements, grading and tolerances. Source: The F* Word, 2026.
- 10 days or 10 weeks is the sample timeline gap The F* Word uses to judge tech pack tools, a reminder that accuracy drives speed.
- 45+ years in product and $300M+ in global product sales are the figures Cydney Mar cites for her own experience.
What is included in a tech pack, section by section
Most tech packs follow a similar order. The table below, from the Cydney Mar field guide, lists the common sections and why a factory relies on each one.
| Section | What it holds | Why the factory needs it |
|---|---|---|
| Cover page | Style name, number, season, version and contacts | Keeps every file and sample tied to the right version |
| Flat sketches | Front, back and detail line drawings | Shows exactly what to build, without styling or mood |
| Bill of materials (BOM) | Every fabric, trim, thread and component with supplier and color | Lets the factory source and cost accurately |
| Points of measure (POM) | Where and how each measurement is taken, with tolerances | Sets the pass or fail line for every unit |
| Grading chart | Measurements for each size | Scales the pattern correctly across sizes |
| Construction notes | Seams, stitches, finishes and callouts | Removes guesswork in the sample room |
| Colorways | Each color combination and its materials | Prevents mix-ups across variants |
| Labels and packaging | Label placement, care content, folding, bags and boxes | Makes the product retail-ready on arrival |
How do you put together a tech pack?
Work from the product outward, in this order:
- Lock the design. Decide the final features before drawing anything technical.
- Draw clean flats. Front and back line drawings, plus close-ups of key details.
- List every material. Build the bill of materials, including trims and packaging.
- Set measurements and tolerances. Define each point of measure and how much it may vary.
- Grade the sizes. Add the measurement for every size you will sell.
- Write construction notes. Seams, stitching, finishes and anything a sewer could misread.
- Add labels and packaging. Placement, content and how it ships.
- Check it before it goes out. Compare against a reference sample or have an experienced developer review it.
Gaps found on paper cost far less than gaps found in a sample round. For prices and timelines by option, read how much a tech pack costs.
Where a tech pack fits in your product development strategy
A tech pack is one tool inside a bigger plan. A product development strategy decides what you make, who buys it, who makes it and whether the numbers work. Cydney Mar's Concept-to-Reality Pathway puts those decisions in six stages, and the tech pack matters most in the middle: prototypes, suppliers and production readiness.
Read the full chapter on product development strategy for consumer products, or compare product development consulting firms and other kinds of support.
- 1Product ClarityDefine what you are making, and who it is for.
- 2Right PrototypesDevelop the right samples and cut costly rework.
- 3The Right SuppliersVetted for quality, communication and reliability.
- 4Cost and MarginsBuild for real profit and scale; calculate costs properly.
- 5Production-ReadyFinalize specs and systems for consistent manufacturing.
- 6Launch and ScaleTake it to market through retail, DTC or TV, and grow.
Keep reading the field guide
Common questions
Read all questions in the product development FAQWhat is a tech pack?
A tech pack is the technical document a factory uses to quote, sample and produce your product. It typically holds flat sketches, measurements, materials, construction notes, colorways, labeling and packaging details. Cydney Mar describes a clear, professional tech pack as the difference between a sample that is right the first time and months of expensive back-and-forth.
What is included in a tech pack?
Most tech packs include front and back flat sketches, a bill of materials listing every fabric and trim, points of measure with tolerances, a grading chart for sizes, construction notes, colorways, labels and packaging instructions. The F* Word, an AI tech pack tool, lists bill of materials, points of measure, grading and tolerance checks among the parts its tool builds. Exact contents vary by product.
What is the main purpose of a tech pack?
The main purpose of a tech pack is to remove guesswork between your idea and the factory. It gives the supplier one clear reference for quoting, sampling and production, so everyone works from the same measurements and materials. That clarity is what keeps sample rounds, and their costs, from multiplying while you wait for a product you can actually sell.
What does a tech pack look like?
A tech pack usually looks like a multi-page document, often a PDF or spreadsheet, with one topic per page. You will typically see a cover page with the style name and number, flat line drawings of the front and back, a measurement table, a materials table, and close-up callouts for details like seams, pockets or closures. It is technical and visual, not a mood board.
Can ChatGPT make a tech pack?
ChatGPT can help draft the written parts of a tech pack, such as material lists or construction notes, but it cannot measure your product or confirm what a factory can make. Dedicated AI tools exist too: The F* Word says its tool builds a factory-ready tech pack in 8 to 10 minutes and flags contradictions. Any AI draft still needs an experienced check.
What is a garment tech pack?
A garment tech pack is a tech pack written for a piece of clothing. Compared with tech packs for candles or homewares, it leans heavily on points of measure, size grading and construction details such as seam types and trims. Cydney Mar began her career in fashion, from her own couture collection in 1980 to collections she sold on QVC in 8 countries.
Talk to Cydney Mar about your product
If you have a consumer product idea for retail, TV or direct-to-consumer and want an experienced guide through the Concept-to-Reality Pathway, contact Cydney directly.