What Canadian Buyers Should Include in an Apparel Tech Pack

Why tech packs matter

A tech pack is the working language between a buyer’s intent and a factory’s execution. Incomplete packs create incomplete quotations, slow sampling, and costly reinterpretation during production. For Canadian buyers manufacturing with Asian partners, a clear tech pack is one of the highest-leverage preparation steps available.

This guide outlines what to include. It is practical buyer guidance—not a legal template—and should be adapted to your product category and internal standards.

Product identity and commercial context

Start with information that prevents style confusion:

• Style name and internal style number
• Season or program reference
• End use (retail, uniform, promotional, private label)
• Target market and any regional labelling needs
• Intended gender or fit block
• Estimated order quantity by colour and size

Quantity estimates do not lock a purchase order, but they help factories propose realistic constructions, MOQs, and capacity assumptions.

Flat sketches and construction views

Factories need visual clarity. Include:

• Front, back, and detail views
• Callouts for seams, pockets, closures, and special operations
• Stitch type expectations where relevant
• References for comparable garments if helpful

Photos of an existing sample can support interpretation, but they should not replace written construction notes. When a photo and a note conflict, factories often follow whichever is easier—not necessarily what you intended.

Measurement chart and tolerances

A size chart should define:

• Points of measure with clear diagrams
• Graded measurements across the size run
• Measurement methods (for example, how chest or inseam is taken)
• Acceptable tolerances

Without tolerances, every millimetre becomes a potential dispute. With clear tolerances, factories and inspectors share a common standard. If you are developing a new fit block, note whether measurements are aspirational targets or already validated on a fit sample.

Bill of materials (BOM)

List every material and trim the garment requires:

• Shell fabric with fibre content, construction, and target GSM or weight
• Rib, lining, interlining, and pocketing
• Zippers, buttons, snaps, drawcords, and elastics
• Thread expectations where critical
• Labels: brand, care, content, size, and any legal or retail labels required for your program

Where exact mills or article numbers are known, include them. Where alternatives are acceptable, say so—and define what “acceptable” means in hand feel, colour, and performance terms.

Colour and shade standards

Colour is a frequent source of rework. Provide:

• Colour names and reference systems (for example, Pantone references where used)
• Lab-dip requirements for custom colours
• Bulk shade approval expectations
• Contrast colour placements for ribs, trims, or stitching

If a previous bulk lot is the commercial standard, say that clearly and share retained references when possible.

Artwork and decoration

Decoration details belong in the tech pack, not in a separate informal thread. Include:

• Artwork files in the formats your process requires
• Placement diagrams with measurements from fixed points
• Size of each logo or graphic
• Decoration method (embroidery, screen print, heat transfer, and so on)
• Thread or ink colour references
• Special instructions for distressed, tonal, or multi-location branding

For promotional programs, note whether decoration is buyer-supplied artwork only or includes factory artwork separation and proofing steps.

Construction and quality notes

Add written expectations for:

• Critical seams and reinforcement areas
• Needle and stitch density preferences when they affect durability or appearance
• Finishing standards (pressing, cleaning, presentation)
• Packaging: polybags, folding method, carton quantities, and markings
• Any restricted processes or finishing chemicals relevant to your program

If your brand has a quality manual, reference the applicable sections rather than assuming factories already know your internal language.

Sampling and approval expectations

State what samples you expect and in what sequence:

• Proto or development sample
• Fit sample
• Size set
• Pre-production sample
• Decoration strike-off or decorated sample

Also define how comments will be returned and what constitutes approval. A dated approval record protects both buyer and factory when production questions arise later.

Compliance and documentation requests

List documentation you may request for review—without treating the tech pack as legal advice. Examples include:

• Fibre content and care information aligned to your market requirements
• Factory profile or audit reports your organization reviews
• Test reports for colourfastness, shrinkage, or other specified properties
• Origin and shipment documents typically needed for import processes

Be specific about what is required before production versus what is required before shipment. Ambiguous “all certificates” language creates delay without improving clarity.

Common gaps Canadian buyers should avoid

Incomplete packs often omit:

• Tolerances on the size chart
• Packaging and carton instructions
• Decoration placement measurements
• Whether trims are factory-sourced or buyer-supplied
• Which sample stage is the bulk reference
• What happens if a material substitution is proposed

Each gap invites interpretation. Interpretation invites inconsistency.

How to use the tech pack in sourcing

A strong tech pack supports three commercial moments:

1. Quotation — factories cost what is specified
2. Sampling — revisions are measured against a shared document
3. Production — cutting, sewing, and finishing follow approved references

If the pack changes after quotation, costing and lead times may need to change as well. Treat revisions as controlled events, not casual edits.

Closing guidance

You do not need a perfect tech pack on day one, but you do need a complete enough pack to prevent expensive guessing. Start with sketches, measurements, BOM, colour standards, decoration placements, and packaging. Expand detail where your category risk is highest—fit-critical garments, complex outerwear, or heavily decorated promotional styles.

Avelion Global reviews tech packs with Canadian buyers as part of product development and sampling coordination, helping identify missing details before they become production problems. Clear documents remain one of the simplest ways to improve manufacturing outcomes.