240 GSM Cotton Explained: Why Fabric Weight Matters More Than Price When Buying Tees
Gunjan (Fashion Garments Designer, 15 years of experience in fashion garments design)If you have shopped for t-shirts online, you have probably seen GSM listed somewhere in the product details and skipped right past it. That number matters more than almost anything else on the page, including the price. GSM, or grams per square metre, tells you how dense and durable the fabric actually is. A tee that looks identical in photos can feel completely different depending on whether it is 150 GSM or 240 GSM, and that difference shows up the first time you wash it.
Here is what GSM actually means, why 240 GSM cotton is the standard worth looking for, and how to tell if a tee is genuinely good fabric or just good photography.
What does GSM actually mean for a t-shirt?
GSM measures the weight of fabric per square metre. The higher the number, the denser and heavier the fabric. Lighter fabric, generally under 180 GSM, feels thin, can be slightly see-through, and tends to lose its shape faster after washing. Heavier fabric in the 220 to 240 GSM range feels substantial, holds its drape, and wears for years instead of months.
How does GSM compare across common ranges?
| GSM Range | Feel | Typical Lifespan |
|---|---|---|
| Under 160 GSM | Thin, light, can be sheer | Loses shape within months |
| 160 to 200 GSM | Standard, mid-weight | Holds up for a season or two |
| 220 to 240 GSM | Substantial, structured drape | Holds shape for years with proper care |
| Above 260 GSM | Heavy, very durable | Long-lasting but warmer to wear |
Cool Bee's oversized tees are made from 240 GSM premium cotton French Terry, which sits in the sweet spot: heavy enough to hold the drop-shoulder shape and drape properly, while still breathable enough for Indian weather.
A couple of 240 GSM tees to feel the difference yourself
Browse the full collections for men and women.
How do you check fabric quality before buying online?
You cannot feel the fabric through a screen, but you can check for these signals:
- Check the GSM listed in the product description. Reputable brands list this directly. If it is missing entirely, that is often a sign the fabric is not a selling point.
- Look for the fabric composition. 100% cotton or cotton French Terry blends generally outperform cheap polyester-cotton mixes for drape and breathability.
- Read the wash care instructions. Fabric that requires cold wash and low heat drying is usually a sign the brand wants to protect a print and fabric quality worth protecting.
- Check reviews for shrinkage or fading complaints. Repeated complaints about a tee losing shape after one wash usually point to lighter, lower GSM fabric.
- Compare price against GSM, not against other tees alone. A heavier 240 GSM tee at a slightly higher price often works out cheaper per wear than three thin tees that wear out fast.
Frequently asked questions
Is higher GSM always better for a t-shirt?
Not universally. Above 260 GSM, fabric gets noticeably warmer, which may not suit hot climates. For most everyday oversized tees, 220 to 240 GSM is the ideal balance of durability and breathability.
Does GSM affect how a tee fits?
Yes. Heavier fabric holds structure and drape better, which is especially important for oversized and drop-shoulder fits that rely on the fabric holding its shape rather than collapsing.
Why do cheaper t-shirts usually have lower GSM?
Lighter fabric uses less raw material, which lowers production cost. That is often where the savings on a budget tee come from.
Can I tell GSM just by looking at a product photo?
No. GSM has to be listed in the product description or fabric details. Photos alone cannot reliably show fabric weight.
What GSM does Cool Bee use for its oversized tees?
All Cool Bee oversized tees use 240 GSM premium cotton French Terry across the catalog.