FABRIC SOURCING GUIDE
Fabric weight guide for womenswear sourcing
GSM tells you how much one square metre of fabric weighs. It does not, by itself, tell you whether a fabric is sheer, warm, durable, fluid or suitable for a garment.
START WITH THE BRIEF
Turn a visual idea into sourcing criteria
Weight is useful for comparing related fabrics, checking a specification and communicating a target direction. It becomes misleading when used as a universal shortcut: a compact fine fabric and an open textured fabric can share a similar GSM but behave very differently.
Lightweight directions
Often considered for blouses, linings, layered pieces and airy dresses. Check transparency, seam strength, cling and handling rather than accepting weight alone.
Read the blouse guideMidweight directions
Common across dresses, skirts, shirts and coordinates because they can balance movement and coverage. The exact use still depends on construction and finish.
Read the dress guideStructured directions
Used when the silhouette needs body. Review bending stiffness, recovery, seam bulk and whether interlining or backing will be added.
Review jacquard sourcingHeavier textured directions
Can suit jackets or statement garments, but weight does not guarantee stability. Check fraying, openness, yarn security and wearer comfort.
Review tweed sourcingBUYER CHECKLIST
Evaluate the selected article
These checks apply to the exact fabric under consideration. They are more reliable than approving from a category name or photograph.
GSM
Confirm the measured or specified weight for the exact article and agree an acceptable tolerance when needed.
Thickness and density
A thicker surface is not necessarily heavier; construction density and yarn form matter.
Drape
Evaluate how the cloth bends and hangs at a useful sample size, not only as a small swatch.
Opacity
Test the final colour and intended stretch or grain direction against light.
Stretch and recovery
Where relevant, record direction and recovery instead of assuming weight predicts fit behaviour.
Finishing effects
Washing, coating, brushing or other finishes can change handfeel and performance without a simple relationship to GSM.
COMMON SOURCING ERRORS
What can distort the decision
Treating a range as a rule
Published weight bands are only orientation. The garment pattern, fibre, construction and finish decide suitability.
Comparing unrelated constructions
Equal GSM does not make satin, mesh, tweed and jacquard interchangeable.
Ignoring usable width
Cost per garment depends on width, pattern repeat and cutting yield as well as weight.
Approving a number without a swatch
A specification reduces ambiguity but cannot replace physical evaluation.
FROM SHORTLIST TO BULK
A practical approval sequence
1. Define
Share the garment, desired appearance, required performance, colour, quantity, market and timing.
2. Shortlist
Compare relevant fabric directions and identify which specifications still require article-level confirmation.
3. Sample
Approve physical colour, handfeel, drape and construction, then perform garment or care testing where needed.
4. Reconfirm
Confirm availability, MOQ, usable width, price, lead time and bulk requirements for the selected article.
BUYER QUESTIONS
Frequently asked questions
What GSM is best for a dress?
There is no universal number. A fluid lined dress, an unlined summer dress and a structured dress require different combinations of weight, opacity and drape.
Does higher GSM mean better quality?
No. Quality means suitability and consistency against the agreed specification. Excess weight can be a disadvantage for some garments.
How should a buyer communicate target weight?
Share a reference swatch or garment, the measured target if available, the intended application, construction and acceptable tolerance. Then compare the supplier’s physical sample.
REQUEST A MATCH
Send your garment reference or fabric brief
We will use the intended garment and confirmed requirements to shortlist real fabric directions. Final specifications and commercial terms remain article-specific.