If you've ever compared two t-shirts that looked identical online but felt completely different in person, the difference was probably fabric weight. Measured in GSM — grams per square meter — fabric weight is one of the clearest signals of a garment's quality and best use. Here's what you need to know.
What GSM actually measures
GSM is simply how much a square meter of the fabric weighs. Higher GSM means a thicker, denser, heavier fabric; lower GSM means lighter and thinner. It's a direct, honest measure — which is why serious buyers look at it.
The three weight ranges
- Lightweight (roughly under 150 GSM): Soft, breathable, and drape-y with a fashion-forward feel. Great for warm-weather events, retail-style fashion tees, and anywhere a premium soft hand matters more than ruggedness. Trade-off: less durable and can be slightly sheer.
- Midweight (roughly 150–185 GSM): The versatile workhorse. Sturdy enough for daily wear, comfortable enough for everyday tees, and reliable for most custom projects. If you're unsure, midweight is the safe default.
- Heavyweight (185 GSM and up): Thick, structured, and durable with a premium feel. Heavyweight blanks are trending hard in 2026 — buyers increasingly want substantial, long-lasting garments for workwear, premium merch, and structured streetwear fits.
How weight affects printing and embroidery
- Screen printing: heavier, tighter fabrics hold ink crisply and resist show-through.
- Embroidery: midweight and heavyweight fabrics support stitching cleanly; very light fabrics may pucker without backing.
- DTF/DTG: works across weights, but denser fabrics tend to show colors richly.
Choosing the right weight for your project
- Summer event or giveaway tee? Lightweight keeps costs and heat down.
- Everyday brand tee or retail piece? Midweight balances feel and durability.
- Work uniform, premium merch, or something built to last? Heavyweight.
Remember: heavier isn't automatically "better." The best weight is the one that fits how the garment will actually be used.
Find the right weight with us
Our product pages show fabric details so you can choose with confidence. Browse our blanks and pick the weight that fits your project — or ask us and we'll recommend one.