Knowledge Centre for Apparel Buyers
Working notes on the standards, certificates and construction decisions that come up when you source outerwear and fabric from China. Written for technical and sourcing buyers, not for search engines.
All Guides
How to Read a JIS L 1092 Water Resistance Figure
What the water column number on an outerwear specification means, and what it does not tell you.
Read the guide →What JIS L 1099 Tells You About Breathability
Vapour permeability figures, why the method letter matters and how to compare styles fairly.
Read the guide →What an OCS Scope Certificate Covers
The difference between a scope certificate and a transaction certificate, and what a buyer should collect.
Read the guide →PFC Free Water Repellent Finishes and What Changes
Why buyers are moving away from fluorinated repellents and what to expect in wear and care.
Read the guide →Down and Synthetic Insulation Compared for Buyers
Warmth for weight, loft recovery, price and packing, and where blended fills sit between the two.
Read the guide →Two Layer and Three Layer Laminates in Outerwear
How the layer count changes weight, hand feel, durability and what the garment costs to make.
Read the guide →Frequently Asked Questions
Who writes these guides?
They are written by Dalian Y&D from the standards and documents we work with daily.
Do the guides describe your products only?
No. They describe how the standards and certificates work in general, then say where our range sits against them.
Can I ask a question that is not covered?
Yes. Email [email protected] with the specification you are working on.
Ask a Technical Question
Send the specification you are working from and we will answer against it rather than in general terms.