Your factory doesn't build from a picture. It builds from a tech pack.
A tech pack is the technical file a manufacturer actually quotes, cuts, sews, and inspects against. Without one, every quote you receive is a guess, every sample is a surprise, and every mistake is arguable.
We turn your concept, sketch, reference photo, or AI mockup into a complete, production-ready tech pack — one you can send to us, or to any factory in the world.
Start my tech pack See what's inside- Detailed spec sheet with technical flats
- Point of Measure chart with tolerances
- Fabric and trim recommendations
- Grading across your full size range
- Print or embroidery placement guide
- Original vector file, plus every format you need
What a tech pack actually is
Think of it as the instruction manual for one garment.
A designer decides what the piece should look like. A tech pack describes that piece precisely enough that a pattern maker in a factory you've never visited, working in a language you may not speak, produces exactly what you pictured — in every size, in every unit of the run.
It isn't paperwork for the sake of paperwork. It's the only document in the process that you, the pattern maker, the cutting room, the print operator, and the quality inspector all read the same way.
Why brands usually find out the hard way
Most people meet their first tech pack after something has already gone wrong: three factory quotes that don't resemble each other, a third sample that still isn't right, or a delivered batch that measures differently from the one that was approved.
None of those are unusual. They're the normal consequence of a factory building from a picture and filling in the gaps itself. The pack is what removes the gaps.
What's inside the pack we build for you
Six deliverables, written to industry convention so any manufacturer can read them.
Detailed spec sheet
Technical flat drawings of the front, back, and any construction detail worth showing up close, with every measurement, construction note, and seam type called out against the drawing.
Point of Measure chart
Every measurement tied to a named, repeatable point on the garment — and how much natural variation is acceptable. This is the part that decides who's right when a delivered batch gets measured.
Fabric and trim specs
Composition, construction, weight in GSM, finish, and shrinkage behaviour — plus thread, labels, drawcords, zippers, tapes and elastic, each with the detail a sourcing team needs to buy it.
Grading across sizes
How each measurement steps up and down from your base size, so an XS and a 3XL are recognisably the same garment rather than two products sharing a print.
Decoration placement guide
Method, exact size, exact position measured from a fixed reference point, colour codes, and whatever the technique needs to be set up correctly the first time.
Production-ready artwork
Layered, editable vector source files — not a flattened JPEG — separated correctly for the decoration method you've chosen, in every format you'll need.
Why this file matters more than people expect
Five things the pack does that nothing else in the process does.
You get quotes you can compare
Send a photo to three factories and you get three prices for three different garments. Send the same pack and the numbers finally mean something, because everyone is pricing the identical piece.
You spend less on samples
Most second and third sample rounds exist because something wasn't specified and somebody guessed. Every gap closed on paper is a round you don't pay for and don't wait three weeks for.
It settles things when they go wrong
If a batch runs short in the body or a print sits two centimetres low, the tolerance chart resolves it in a minute. Without one, it's your memory against the factory's.
Your reorder matches your first order
Six months later, with a different production slot and a different dye lot, the pack is what makes batch two look like batch one. Brands lose customers over exactly this.
It's cheap insurance
A tech pack costs a fraction of one wrong production run — and a wrong run isn't just the money, it's the launch date you now have to move.
It makes you easy to work with
Factories prioritise the orders they can plan. Arriving with a complete pack puts you ahead of the brand that arrives with a mood board and a deadline.
Vague versus production-ready
The same garment, described two ways. The left column isn't lazy — it's what a sensible person writes before they've worked with a factory. The right is what a factory needs in order to invent nothing.
| What most briefs say | What a real tech pack says |
|---|---|
| "Fabric: soft premium cotton" | 100% combed ring-spun cotton single jersey, weight in GSM, pre-shrunk, maximum residual shrinkage stated, finish named |
| "Colour: navy" | A Pantone reference, with a lab dip approved against a physical swatch before bulk dyeing |
| "Fit: regular, medium length" | Every measurement defined at a named point on the garment, each with its own tolerance, across the full size range |
| "Logo on the chest, medium size" | Exact print width, centred to a stated line, top edge measured a fixed distance down from the high point of the shoulder, decoration method and ink colour named |
| "Sizes S to XL" | Base size specified, with the exact step each measurement takes between one size and the next |
| "Nice heavyweight hoodie feel" | Fabric weight, construction, brushing, cuff and hem rib specification, drawcord and eyelet details, each named individually |
Why we don't accept AI-generated tech packs
We get sent a lot of packs written by ChatGPT and similar tools. We don't accept them as production documents — and we'd rather explain the reasons than just say no.
The measurements are plausible, not derived
A language model produces numbers that look like garment measurements because it has read a great many of them. It has never drafted a pattern, so the numbers usually don't hold together as a real garment — the armhole disagrees with the sleeve, the neck opening disagrees with the collar, and nobody notices until a sample is sewn.
The size grading is arithmetic, not grading
Real grading distributes change unevenly: chest, shoulder, armhole and sleeve don't all grow by the same amount between sizes. A generated chart usually adds a flat increment to everything, which produces small sizes that are too wide and large sizes that are too tight in the wrong places.
The tolerances are borrowed from nowhere
Tolerance figures depend on the fabric, the construction, and the measurement point. Generic values pasted into every row are worse than no values at all, because they look authoritative in a dispute.
The points of measure aren't defined
A chest measurement means nothing until everyone agrees where on the garment the tape goes. Generated packs almost always name the measurement and skip the point it's taken from.
The fabric spec isn't buyable
"Premium 100% cotton" can't be sourced. A mill needs composition, construction, weight, finish and shrinkage behaviour before it can quote a single metre.
The artwork isn't production artwork
A generated or exported image isn't a layered vector file separated for a decoration method. Screen printing needs colour separations; embroidery needs digitising. Neither is something a chat window produces.
And the real problem: it looks finished
A vague brief announces itself. A polished, well-formatted, confidently wrong document doesn't — which is exactly what makes it more dangerous. It's why a first-time brand can arrive at a factory feeling fully prepared and still be three weeks and two samples away from a garment anyone can actually make.
So send it anyway
Genuinely. If you've already written a tech pack with an AI tool, send it over — we'll read it as a brief, not as a spec. It usually tells us exactly what you have in mind and means you arrive at the conversation having already thought your product through. We just rebuild it into something a cutting room can work from.
How it works
About a week, from whatever you have today to a file any factory can quote.
Send what you have
A sketch, a photo, a reference garment, a mockup, an AI draft. There's no minimum level of preparation.
We fill the gaps
A short round of specific questions: intended fit, base size, market, how it should feel and what it has to survive.
We build the pack
Flats, POM chart with tolerances, fabric and trim specs, grading, placement guide, prepared artwork.
You review it
One revision round included, so anything that doesn't match your intent is corrected before you take it anywhere.
You own it
The files are yours. Produce with us, or take them to any other manufacturer — it's written to be read by any factory.
Who this is for
- Brands moving from a finished concept into manufacturing for the first time
- Founders who've been asked for a spec sheet and aren't sure what's being asked for
- Creators and companies whose design exists as an image, a mockup, or an AI render
- Anyone comparing factory quotes who wants the numbers to mean something
- Existing brands who never had a proper pack written and now need consistent reorders
Not the right fit if you need the garment designed from scratch rather than specified — start with Brand & Design, and the tech pack comes after.
What we need from you
- What the garment is, and roughly how it should fit
- Any artwork or logo you want applied, in the best quality file you have
- A reference garment or photo, if there's a fit or feel you want to work from
- Your target market and size range
- Roughly what quantity you're planning, so the fabric and decoration recommendations stay realistic
If you don't have all of it, that's normal. Step two exists for exactly that reason.
A design says what you want. A tech pack says what gets made.
Questions we hear most
Everything worth knowing before you order a pack.
What is a tech pack, in simple terms?
It's the technical file a clothing manufacturer builds from — technical drawings, exact measurements for every size, fabric and trim specifications, construction and seam details, and print or embroidery placement. It's what turns a design into something a factory can quote and produce accurately.
Do I really need a tech pack for a small order of 100 pieces?
Yes, and arguably more so. A small run has less margin for error: one wrong batch is a bigger share of your inventory and your budget than it would be at 5,000 units. A tech pack is also what lets you compare quotes from several factories fairly, at any quantity.
Can I just use a tech pack generated by ChatGPT or another AI tool?
Not as a production document. Generated packs typically contain measurements that aren't derived from a real pattern, size grading applied as a flat increment, tolerance figures with no basis in the fabric or construction, undefined points of measure, fabric descriptions a mill can't source, and artwork that isn't prepared for any decoration method. Send it as a brief and we'll build the real thing from it.
Does the tech pack belong to me, or only work with your factory?
It's yours. It's written to industry convention so any manufacturer can read it — we'd rather you're able to compare quotes than be locked to one supplier.
How long does it take?
Usually about a week from the point we have your files and your answers to our questions, with one revision round included.
Do I need a tech pack before I can get a quote?
No — we'll quote from a concept. But the quote gets firmer and the sample gets closer to right the more precisely the garment is specified, which is why most brands end up building the pack before committing to production anyway.
How many tech packs do I need?
One per garment style. A t-shirt and a hoodie are different constructions and different patterns, so they need separate packs. Different colours or prints of the same garment are covered inside a single pack.
Send us whatever you have today
A sketch, a photo, a mockup, or an AI draft — we'll tell you what's missing and build the pack your manufacturer can actually quote from. €290 per garment, about a week, one revision included.
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