Most founders know they need a tech pack.
Fewer understand what it actually needs to do.
A tech pack isn’t a formality.
It’s not a document you create to send to a factory.
It’s the system that defines your product.
If your tech pack is incomplete, unclear, or inconsistent:
- Samples take longer
- Production errors increase
- Quality becomes unpredictable
If it’s done correctly, it becomes the foundation for consistent production at scale.
What a Tech Pack Is (In Practical Terms)
A clothing tech pack is a complete set of instructions for manufacturing your product.
It answers three critical questions:
- What are we making?
- How should it be made?
- What does “correct” look like?
If any of those are unclear, the factory fills in the gaps.
And that’s where problems start.
The Core Components Every Tech Pack Needs
1. Product Overview
Start with a clear definition of the product.
Include:
- Product name and style number
- Category (e.g., cut-and-sew, activewear, swimwear)
- Intended use (casual, performance, etc.)
Why it matters:
It aligns expectations before details begin.
2. Technical Sketches (Front + Back)
Visual clarity is critical.
Include:
- Flat sketches (not marketing images)
- Front and back views
- Construction details highlighted
What this does:
Removes ambiguity around design and structure.
3. Measurement Specifications (Spec Sheet)
This defines how the garment should fit.
Include:
- Base size (usually medium)
- Point of measure (POM) definitions
- Exact measurements
Example:
- Chest width
- Body length
- Sleeve length
Why it matters:
This is the reference for both sampling and production.
4. Grading Rules
Your product isn’t one size.
Include:
- Size range (XS–XL, etc.)
- Measurement increments between sizes
Why it matters:
Without grading rules:
- Sizes are inconsistent
- Fit varies across customers
5. Fabric Specifications
Fabric is the most important variable.
Include:
- Fabric composition (e.g., 80% polyester / 20% spandex)
- GSM (weight)
- Stretch properties (if applicable)
- Fabric supplier or reference
Critical detail:
Don’t just describe the fabric.
Define it precisely.
6. Trim and Component Details
Trims include all non-fabric elements.
Include:
- Labels (woven, printed, placement)
- Zippers, buttons, elastics
- Drawcords or hardware
Why it matters:
Trims are often substituted if not clearly specified.
7. Construction Details
This is where many tech packs fall short.
Include:
- Seam types (flatlock, overlock, etc.)
- Stitch types and density
- Reinforcement areas
Why it matters:
Construction defines durability and performance.
8. Color Specifications
Color must be controlled.
Include:
- Color codes (Pantone or equivalent)
- Lab dip approval requirements
Why it matters:
Color variation between batches is common without control.
9. Bill of Materials (BOM)
A complete list of everything required to produce the garment.
Include:
- Fabric
- Trims
- Packaging components
Why it matters:
Ensures nothing is missed during production planning.
10. Tolerances
No production is exact.
Tolerances define acceptable variation.
Include:
- Measurement tolerances (e.g., ±0.5 cm)
- Critical vs non-critical measurements
Why it matters:
Without tolerances, quality becomes subjective.
11. Packaging Instructions
Often overlooked — but important.
Include:
- Folding method
- Polybag requirements
- Label placement
Why it matters:
Ensures consistency in final presentation.
What Most Tech Packs Are Missing
1. Construction Detail
Many tech packs focus on design — not build.
Without construction clarity:
- Factories make assumptions
- Durability varies
2. Fabric Precision
“Cotton jersey” is not a specification.
Without precise fabric definition:
- Substitution risk increases
- Product changes across orders
3. Tolerances
Without defined tolerances:
- QC becomes inconsistent
- Disputes increase
4. Alignment Across Sections
Inconsistent information between:
- Sketches
- Measurements
- Notes
Creates confusion.
Why a Good Tech Pack Reduces Production Risk
A strong tech pack:
- Reduces sampling rounds
- Speeds up communication
- Improves sample accuracy
- Increases consistency in bulk production
It doesn’t eliminate issues.
But it makes them manageable.
When to Build Your Tech Pack
Before you approach manufacturers.
Not after.
Factories can help refine — but they shouldn’t define your product.
Who Should Create the Tech Pack
Options include:
- Internal design/technical team
- Freelance technical designers
- Sourcing partners
What matters is:
- Accuracy
- Completeness
- Alignment with your product
The Biggest Mistake Founders Make
Treating the tech pack as a one-time document.
It’s not.
It evolves through:
- Sampling
- Fit adjustments
- Material validation
The final version should reflect the product you’re actually producing.
Final Thought
A tech pack doesn’t guarantee perfect production.
But without one, consistent production is almost impossible.
The brands that scale successfully don’t rely on interpretation.
They define their product clearly — before production begins.
Need Help Building or Reviewing Your Tech Pack?
We help apparel brands create production-ready tech packs, validate specifications, and ensure factories can execute consistently.
