What GSM counts as heavyweight?

Lightweight tees sit around 130–160 GSM, mid-weight around 180–210 GSM, and heavyweight begins at roughly 220 GSM. Premium heavyweight tees, including TYDE's french terry, sit between 240–320 GSM.

Are heavyweight t-shirts better?

Heavyweight tees last longer, resist transparency, and keep their shape after repeated washing. They're warmer than classic tees, which makes them ideal for autumn and winter layering or year-round wear in cooler climates.

What is french terry fabric?

French terry is a knit fabric with smooth loops on the inside and a flat face on the outside. It's soft, breathable, and structured — which is why TYDE uses it across the heavyweight essentials range.

What Is a Heavyweight T-Shirt? The Complete Guide

Q: What is a heavyweight t-shirt?

A heavyweight t-shirt is one made from fabric weighing 220 GSM (grams per square meter) or more — typically 7 oz or heavier. The denser knit gives the tee a structured drape, opaque finish, and a substantial hand-feel that holds its shape wash after wash.

A heavyweight t-shirt is a tee made from fabric weighing roughly 220 GSM (grams per square meter) or more — usually 7 oz and up. The denser knit gives the shirt a structured drape, an opaque finish, and a substantial hand-feel that holds its shape wash after wash. Where a classic tee feels soft and floaty, a heavyweight tee feels deliberate.

How fabric weight is measured

Fabric weight is measured in GSM or ounces per square yard. The higher the number, the denser the knit:

Lightweight: 130–160 GSM (~4–5 oz). Thin, soft, great for hot weather but prone to transparency.
Mid-weight: 180–210 GSM (~5.5–6 oz). The everyday standard for most retail tees.
Heavyweight: 220–280 GSM (~7–8 oz). Structured, opaque, holds shape.
Premium heavyweight: 280–320 GSM (~8.5–10 oz). The dense, sculpted feel found in TYDE french terry.

Heavyweight vs classic t-shirt

A classic tee prioritises softness and breathability. A heavyweight tee prioritises structure, longevity, and drape. The differences add up across a wardrobe:

Drape: Heavyweight fabric falls cleanly off the shoulder instead of clinging.
Opacity: Dense knits are fully opaque, even in white.
Shape retention: Collars stay flat, hems stay straight, sleeves don't curl.
Lifespan: Heavyweight tees outlast classic tees by years, not months.
Warmth: Ideal for layering or for cooler climates year-round.

Why french terry is the premium heavyweight choice

TYDE builds its heavyweight essentials around french terry cotton — a knit fabric with looped yarns on the inside and a smooth face on the outside. It's the same fabric used in premium loopback sweatshirts, just engineered for tee weight. The loops add softness against the skin while the flat outer face gives the structured, sculpted drape that defines a premium heavyweight tee.

Combined with garment dyeing and reinforced collar tape, french terry tees age into a wardrobe staple rather than a disposable basic.

How to care for a heavyweight t-shirt

Wash cold, inside out, with similar colors.
Tumble dry low or hang dry to preserve the structured hand.
Skip fabric softener — it coats the fibres and dulls the finish.
Fold rather than hang to keep the shoulders sharp.

Shop TYDE heavyweight essentials

Every TYDE tee is cut from premium heavyweight french terry, in oversized and regular fits, across a timeless color palette.

Shop all tees See the latest drop