The best GSM for a T-shirt is the one that fits what the shirt has to do. For most everyday tees, a midweight fabric of roughly 160–220 GSM is a safe starting point. Go lighter for heat and layering. Go heavier for structured, boxy and oversized fits, embroidery, and premium positioning.
This guide turns that into a decision you can make for each product in your range.
New to the term? GSM is the weight of one square metre of fabric, in grams.
Quick answer: GSM by use case
| Use case | Starting GSM range | Why |
|---|---|---|
| Promotional and event tees | 140–160 | Low cost and weight; worn for a short time |
| Layering pieces | 140–180 | Thin enough to sit under other garments |
| Warm-climate everyday tees | 160–190 | Cooler and lighter to wear |
| Year-round everyday basics | 160–220 | Balance of comfort, opacity and structure |
| Screen-printed retail tees | 180–220 | Stable surface, opaque, versatile |
| Embroidered tees | 200+ | Denser fabric resists puckering under stitches |
| Relaxed oversized fits | 190–250 | Volume with some drape |
| Boxy and structured fits | 250+ | Holds a square silhouette |
| Premium streetwear positioning | 250+ | Dense hand feel customers read as premium |
These are starting points, not rules. Fabric quality, yarn and knit can matter as much as weight, so always confirm with a sample.
1. Start with how the shirt will be decorated
Screen printing works across most weights. Midweight and heavier fabrics give a firm, opaque surface that prints cleanly and hides the print from the inside.
DTG printing depends more on the fabric surface than on weight. A smooth, tightly knit cotton face prints sharper detail. Ask your decorator which fabrics they recommend.
Embroidery generally needs a heavier, denser fabric. Lightweight jersey can pucker and distort around stitched logos. Many decorators prefer 200 GSM or more.
If you are still choosing a method, compare them in DTF vs DTG vs screen printing.
2. Match the weight to the fit
Fit and fabric weight work together. A slim or regular fit usually looks best in light or midweight fabric that follows the body. Oversized and boxy fits depend on fabric that holds its own shape; in lightweight jersey they can look limp rather than intentional.
If you are deciding between regular, oversized and boxy fits, choose the fit first, then the weight that supports it.
3. Consider climate and season
Lighter fabric is cooler. If you sell mainly into warm markets or for summer, keep core tees at the lighter end of the midweight range. For cooler markets, autumn drops or tees worn as an outer layer, heavier fabrics feel more substantial.
4. Fit the weight to your price position
Weight shapes perceived value. Customers often associate a dense, heavy hand feel with premium tees, which helps justify a higher retail price. But heavier fabric also costs more per unit and more to ship. For entry-level and high-volume lines, midweight usually gives the best balance of cost and perceived quality.
180 GSM vs 240 GSM
These are two of the most common choices for brands.
| 180 GSM | 240 GSM | |
|---|---|---|
| Feel | Soft, light, everyday | Dense, substantial |
| Drape | Follows the body | Holds a shape |
| Best fits | Slim, regular, relaxed | Oversized, boxy |
| Season | Most of the year; good in heat | Cooler weather, outer layer |
| Decoration | Print-friendly; embroidery needs care | Print and embroidery |
| Positioning | Everyday basics | Premium, streetwear |
How to test before you commit
- Order samples in two or three weights, in the same colour and size.
- Wash them several times at your recommended care settings.
- Decorate each with your real artwork and method.
- Wear them, and check drape, comfort, shrinkage and shape after washing.
- Confirm the finished-fabric GSM and tolerance with your supplier before bulk.
Find your weight
Browse fabric weights across our T-shirts collection. For structured fits, compare our Oversized collection and our Regular fit collection, and check the GSM listed on each product.
Frequently asked questions
What is the best GSM for a T-shirt?
For everyday tees, roughly 160–200 GSM. Lighter suits heat and layering; heavier suits oversized, boxy and premium styles.
What GSM is best for oversized T-shirts?
Usually 200 GSM or more, and 240+ for a structured boxy look. Lighter fabric gives a softer, drapier oversized fit.
What GSM is best for embroidery?
Heavier fabrics, often 200 GSM or more, as they resist puckering. Test with your embroiderer.
Is 180 GSM good for a T-shirt?
Yes, for everyday and warm-weather tees. It is light and comfortable but less structured than heavier fabric.
Is a higher GSM always better?
No. A higher GSM means more weight, not better quality. Choose the weight that fits the use.