Fabric terminology

How to judge fabric opacity on a garment brief

Fabric opacity is the practical question of whether a cloth covers or reads as sheer in the garment you will cut. Sheer, semi-opaque and opaque are working labels. A cloth can look solid in navy and revealing in white because dye and yarn cover differ.

Deep burgundy transparent silk chiffon in fluid folds

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How to judge fabric opacity on a garment brief

Why fabric opacity changes the brief

Shirting, dresses, trousers and linings fail in wear when opacity was judged only on a dark sample or a marketing adjective. Buyers need to know whether the cloth is the only layer or one layer in a stack.

Start from the garment brief, then read construction and weight on the fabric page. Hold pale colourways against light. For a fuller definition of opaque cloth and how weave, knit and GSM interact, use the opaque fabric topic, then return here to apply the checks to a specific make.

Using fabric opacity on a real cloth

Choose an opaque face cloth when the garment is single-layer, and choose a sheer face deliberately when lining or layering is part of the design. Write that decision into the inquiry with the fabric URL.

Stretch can open a knit and reduce cover. A weave that looks dense in a photo can still flash at a seam if the cloth is light. Wetting and store lighting can change a borderline sample.

What to avoid with fabric opacity

Stretch can open a knit and reduce cover. A weave that looks dense in a photo can still flash at a seam if the cloth is light. Wetting and store lighting can change a borderline sample.

Keep the decision tied to fabric opacity, not to a swapped synonym.
Use only specs published on the fabric page.
Inquire with quantity and end use when a cloth matches.

Frequently asked questions

Does a heavier GSM guarantee opacity?

Not always. Colour, yarn and construction still change how much the cloth covers within the same GSM band.

Where should I learn what opaque fabric means?

Use the opaque fabric discovery topic for the definition and construction factors, then apply the garment checks on this page.

Should I sample pale colours differently?

Yes. Pale and undyed colourways are the usual opacity failures. Test the colour you will manufacture.

Continue with published FabStitch fabrics

Open the marketplace or a related collection, compare the specs that are actually published, and inquire when a cloth matches the brief.

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More fabric weight & education topics

Why fabric opacity changes the brief

Using fabric opacity on a real cloth

Stretch can open a knit and reduce cover. A weave that looks dense in a photo can still flash at a seam if the cloth is light. Wetting and store lighting can change a borderline sample.

What to avoid with fabric opacity

Stretch can open a knit and reduce cover. A weave that looks dense in a photo can still flash at a seam if the cloth is light. Wetting and store lighting can change a borderline sample.

Keep the decision tied to fabric opacity, not to a swapped synonym.

Use only specs published on the fabric page.

Inquire with quantity and end use when a cloth matches.

Frequently asked questions

Does a heavier GSM guarantee opacity?

Not always. Colour, yarn and construction still change how much the cloth covers within the same GSM band.

Where should I learn what opaque fabric means?

Use the opaque fabric discovery topic for the definition and construction factors, then apply the garment checks on this page.

Should I sample pale colours differently?

Yes. Pale and undyed colourways are the usual opacity failures. Test the colour you will manufacture.

How to judge fabric opacity on a garment brief

How to judge fabric opacity on a garment brief

Why fabric opacity changes the brief

Using fabric opacity on a real cloth

What to avoid with fabric opacity

Frequently asked questions

Continue with published FabStitch fabrics

Related pages

More fabric weight & education topics

How to judge fabric opacity on a garment brief

How to judge fabric opacity on a garment brief

Why fabric opacity changes the brief

Using fabric opacity on a real cloth

What to avoid with fabric opacity

Frequently asked questions

Continue with published FabStitch fabrics

Related pages

More fabric weight & education topics