What Is 240 GSM French Terry Cotton? Why It Matters for Oversized Tees

240 GSM French Terry cotton is a mid-heavy weight, looped-back cotton knit fabric that gives oversized t-shirts their structured drape, soft-hand feel, and ability to hold shape through repeated washing. It sits well above the 150-180 GSM used by budget basic tees, which is exactly why an oversized tee made from it looks intentional rather than shapeless.

What does GSM actually mean?

GSM stands for grams per square metre, a direct measure of how much a fabric weighs for a given area. Higher GSM means a denser, heavier weave; lower GSM means a lighter, thinner one. Neither is universally better, the right GSM depends on what the garment needs to do. For oversized, drop-shoulder t-shirts, weight is what keeps the silhouette from collapsing into a shapeless drape.

What makes French Terry different from standard jersey cotton?

Standard jersey cotton, the fabric in most basic t-shirts, is a single-knit construction: smooth on both sides, lightweight, and prone to going limp after a few washes. French Terry is knit with a looped backing, which traps more air, adds structure, and gives the fabric a noticeably more substantial hand-feel. That looped construction is also what allows French Terry to hold an oversized shape across dozens of wash cycles instead of stretching out within weeks.

Why 240 GSM specifically?

Below roughly 220 GSM, French Terry starts to lose the structure that makes it worth choosing over standard cotton. Above 280 GSM, fabric starts to feel heavy and can trap too much heat for India's climate for most of the year. 240 GSM sits at the point that holds an oversized drop-shoulder shape properly while staying breathable enough for daily wear across most of India's seasons, which is why Coolbee Store builds its entire oversized t-shirt range around this exact weight.

Frequently asked questions

Does higher GSM always mean better quality?
No. GSM measures weight, not quality. A poorly woven 300 GSM fabric can still pill or fade faster than a well-constructed 220 GSM one. GSM is one input among several, alongside cotton quality, weave construction, and finishing.

How do I tell if a tee is genuinely French Terry?
Check the inside of the fabric. French Terry has a visible looped texture on the reverse side, distinct from the flat, smooth reverse of standard jersey cotton.

Does French Terry shrink more than regular cotton?
Properly pre-shrunk French Terry shrinks comparably to standard cotton. Always wash cold and avoid high-heat tumble drying to protect the shape and the print.

Explore Coolbee Store's 240 GSM French Terry oversized tees for men and for women.