Fabric buyer guide

Apparel GSM guide for custom clothing production

GSM helps describe fabric weight, but it does not decide quality alone. A serious production brief should connect GSM with fabric type, composition, fit, finishing, decoration, sample approval, and delivery weight.

Send your fabric brief View fabric range

Decision stack

Choose fabric weight after the product is clear

A reliable GSM target starts with the garment use, fabric structure, finishing requirements, and sample plan.

Product use

A gym tee, oversized streetwear tee, winter hoodie, and fashion denim jacket should not be judged by the same fabric target.

Fabric structure

Jersey, fleece, french terry, interlock, rib, mesh, and denim behave differently even when weight looks similar.

Fit and finish

Oversized patterns, brushing, wash, shrinkage, rib recovery, embroidery, puff print, and lining can change the final feel.

Sample approval

The sample confirms hand feel, drape, measurements, decoration placement, and real production direction before bulk.

Reference ranges

Common GSM direction by product

These are planning ranges, not final promises. Final fabric direction should be confirmed after reviewing your product, artwork, fit, quantity, destination, and sample requirement.

T-shirts 180-260 GSM Jersey or interlock. Lighter GSM works for breathable basics; heavier GSM works for premium oversized tees.

Sweatshirts 300-450 GSM French terry or fleece. The right choice depends on season, fit, brushing, and decoration method.

Hoodies 350-500 GSM Heavyweight hoodies need GSM plus composition, shrinkage control, rib quality, and sample approval.

Sweatpants and joggers 300-450 GSM Match the fabric direction with hoodie or sweatshirt tops when building sets.

Tracksuits 220-450 GSM Fleece tracksuits and interlock or performance tracksuits use different fabric logic.

Denim jackets Use oz, wash, and construction Denim is usually judged by ounce weight, wash, distressing, hardware, and finishing rather than GSM alone.

Better quote brief

What to send instead of just a GSM number

Prepared buyers get clearer pricing and better sample direction because the production team can review the whole garment, not only the fabric weight.

Cotton, polyester, fleece, french terry, interlock, jersey, rib, denim, or blended fabric direction
Target season, weight feel, fit type, size range, and reference images
Print, embroidery, puff print, chenille, rhinestones, wash, lining, labels, and packaging needs
Sample quantity, bulk quantity, colorways, destination country, and DDP delivery expectation

Avoid these mistakes

Where GSM conversations go wrong

Asking for only one number

A request like "450 GSM hoodie" is not enough. Composition, fabric type, brushing, rib, fit, shrinkage, and decoration still matter.

Comparing quotes without fabric details

Two manufacturers can quote the same GSM but use different yarn, construction, finish, and weight tolerance.

Ignoring shipment weight

Higher GSM can improve perceived quality, but it also increases carton weight and DDP delivery cost.