What is 390gsm French Terry — and why it matters in streetwear

What is 390gsm French Terry — and why it matters in streetwear

Most people don't think about the weight of a hoodie until they hold two of them side by side.
 
Then it's obvious.
 
One feels like a hoodie. The other feels like something you'd actually reach for every day for the next three years.
 
The difference is usually fabric weight — and specifically, gsm.
 
 
What does gsm mean?
 
GSM stands for grams per square metre. It's the standard measure of how heavy a fabric is. Higher gsm means more material, more density, more weight.
 
In practical terms:
 
180 to 240gsm — lightweight, good for layering, not standalone
260 to 300gsm — mid-weight, standard for most high street hoodies
320 to 360gsm — heavyweight, substantial feel, holds shape well
380gsm and above — premium heavyweight, the kind that feels considered
 
Drop 01 is built from 390gsm French Terry. That's at the top end of what you'd find in premium streetwear.
 
 
What is French Terry?
 
French Terry is a knit fabric with a smooth face on the outside and looped texture on the inside. The loops trap air — which means it insulates without feeling thick or stiff.
 
It's different from fleece, which has a brushed interior. French Terry has more structure. It holds its shape better through washing. It drapes cleanly rather than bunching.
 
At 390gsm, the weight is noticeable the moment you pick it up. It sits on your shoulders differently. It moves differently. And after washing, it comes out looking the same as it went in.
 
 
Why most streetwear doesn't use it.
 
Cost is the honest answer.
 
280gsm fleece is cheaper to produce. For brands chasing volume, the difference in fabric cost per unit adds up quickly. The customer won't necessarily notice in a product photo — but they'll notice the first time they wash it.
 
We chose 390gsm French Terry for Drop 01 because it was the right call, not the cheap one. The Legacy Collection is built to last. That decision starts with the fabric.
 
 
How to care for French Terry so it lasts.
 
Cold gentle wash, inside out.
Line dry — never tumble dry.
Do not iron over the tape detailing or printed marks.
 
The weight means it takes longer to dry than a standard hoodie. That's normal. Hang it flat if possible to maintain the shape through the shoulders.
 
 
The bottom line.
 
If you've ever bought a hoodie and felt disappointed the first time you wore it — it was probably a weight issue. Not the design. Not the brand. The fabric.
 
390gsm French Terry is the foundation of Drop 01. Everything else — the tape detailing, the silhouette, the colourways — is built on top of that decision.
 
Shop the Legacy Collection at shoptheone.store
 
 
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