Cloth ·

What Actually Counts as a Heavyweight Hoodie

Brands call almost anything heavyweight. Here is the number that decides it, what the extra weight buys you, and how to check before you pay.

A heavyweight black hoodie photographed flat

Every brand selling a hoodie calls it heavyweight. Most of them are wrong. The word has no legal meaning and no agreed threshold, so it gets used on 280gsm jersey and on 500gsm loopback alike, and the customer finds out which one they bought about three washes in.

There is a real number underneath the marketing. It's worth knowing.

The number that settles the argument

Fabric weight is measured in grams per square metre. One square metre of the cloth, on a scale. That's the whole idea. A higher number means more yarn packed into the same area, which usually means a denser, more opaque, longer lasting fabric.

Rough bands for cotton sweatshirting:

  • 240 to 300gsm. Light. This is a long sleeve tee that happens to have a hood. Fine for layering, thin in wind, and it will go translucent at the elbows within a year.
  • 300 to 380gsm. Mid weight. The default for most high street hoodies. Comfortable, unremarkable, and the honest majority of what gets sold as heavyweight.
  • 380 to 450gsm. Genuinely heavy. Holds a shape when you drop it on a chair. Warm without a shell over it.
  • 450gsm and up. Serious. Slow to dry, expensive to ship, and it will outlive most of the rest of your wardrobe.

If a listing doesn't print the number, that's information too.

What the extra weight actually buys

Density, mostly. A heavier fabric has more fibre in the same footprint, so there's more material between you and the thing wearing it out. Seams pull against more cloth. Abrasion takes longer to reach the other side.

You also get drape. Light sweatshirting clings and creases. Heavy cloth falls. It's the difference between a hoodie that looks slept in by lunchtime and one that keeps its line all day.

And you get opacity, which nobody mentions until it's gone. Thin cotton greys out and starts showing what's under it. Heavy cotton stays a solid block of colour for years.

What it costs you

Heavy cloth is not free. It takes longer to dry, and a 480gsm hoodie left balled up in a bag will still be damp the next morning. It's warmer than you want in June. It's heavier in a suitcase. And it needs a few wears to soften, because the loops have to break in before the fabric relaxes into you.

That break in period is the part people misread as stiffness. Give it two weeks.

How to check before you buy

Online, look for the gsm in the spec. If it isn't there, ask. A brand that knows its supplier will answer in a sentence.

In person, three tests take ten seconds:

  1. Hold it up to a light. If you can see the shape of your hand through the body panel, it's light cloth.
  2. Pinch the hem and roll it. Heavy loopback rolls into a firm cord. Thin jersey collapses flat.
  3. Lift it by the shoulders. It should have some hang to it, not float.

Where we sit

Everything we cut is heavyweight by the real definition, not the marketing one, and the weight is printed on the product page rather than implied. We'd rather lose a sale to someone who wanted something lighter than win one by being vague. You can see the current cloth on the shop page.

Weight is only half of it, though. How the cloth is knitted decides how it wears, and that's a different question. We've written about loopback, french terry and fleece separately.

NextGSM, Explained Without the Marketing
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