Custom T-Shirt Manufacturer – 240 GSM Heavyweight Cotton, Private Label & OEM

The Oversized Heavyweight T-Shirt is cut from 240 GSM cotton jersey — roughly 50% heavier than a standard tee — so the body holds its boxy shape instead of going limp after a couple of washes. Dropped shoulders and an oversized body give it the structured, streetwear-leaning drape you cannot get from thin cotton.

Why 240 GSM matters

Most t-shirts sit between 150 and 180 GSM. At 240 GSM, this oversized heavyweight t-shirt has enough body to hang straight, resist the twisting and sagging that thin jersey develops, and stay opaque in daylight. The fabric is 100% cotton — no elastane, no polyester blend — so it breathes and keeps a matte, dense surface.

Fit and sizing: how oversized this t-shirt runs

This oversized heavyweight t-shirt is cut boxy with dropped shoulders — take your normal size for the intended oversized fit, or size down one for a closer, standard fit. The high-density ribbed crew neck is built to hold its shape instead of stretching out. Available in S–XXL; the size chart lists chest, body length, drop shoulder and sleeve length in centimetres.

Fabric and construction

100% cotton jersey with double-needle stitching at the hems and shoulder seams, a high-density ribbed crew neck, and short sleeves that sit near the elbow because of the drop shoulder cut. Made for all-season wear.

Chest prints by colourway

Each colourway carries its own chest graphic:

• Bone White — small centred geometric logo in black.
• Midnight Blue — small centred graphic: a square split diagonally into two tones.
• Acid Wash Black — small centred geometric logo in a light contrast tone.
• Burnt Orange — large abstract geometric graphic with "PRISM" lettering beneath it.

Care

• Machine wash cold, inside out, with like colours.
• Tumble dry low, or hang dry.
• Do not bleach.
• Wash the Acid Wash Black colourway separately for the first few washes.

Specifications

If you want one oversized heavyweight t-shirt that keeps its shape wash after wash, this is it — 240 GSM cotton jersey, cut boxy, built to be worn on repeat.

Frequently asked questions

What does 240 GSM mean in a t-shirt?

GSM stands for grams per square metre — how much fabric weighs per unit of area. A standard t-shirt is usually 150–180 GSM. At 240 GSM this is a heavyweight tee: the fabric is denser, it hangs straight instead of clinging, it is not see-through, and it holds its shape for far longer before it starts to twist or pill.

How does the oversized fit run — should I size down?

It is designed as an oversized fit with dropped shoulders. Take your normal size for the intended boxy silhouette, or size down one if you want a closer, standard fit. The chest runs 58–66 cm across sizes S–XXL and the drop shoulder is 28–32 cm, so check the size chart against a tee you already like.

Will a heavyweight cotton t-shirt shrink after washing?

100% cotton can move slightly in the first wash, which is normal. Wash cold and dry low or hang dry and it will stay true to size. Hot water and high dryer heat are what cause cotton jersey to shrink and twist.

Is a 240 GSM cotton t-shirt see-through?

No. See-through tees are almost always thin, light-coloured fabric in the 140–160 GSM range. At 240 GSM with a dense knit, this one stays opaque in daylight, including the Bone White colourway.

Is it a men's t-shirt or unisex?

The pattern is cut to a men's fit, but the boxy oversized silhouette runs roomy on most body types and is commonly worn as unisex. Go by the size chart measurements rather than the label — chest, body length, drop shoulder and sleeve length are all listed in centimetres.

Do all four colourways have the same chest print?

No. Bone White, Midnight Blue and Acid Wash Black each carry a small centred geometric logo, with the tone matched to the fabric. Burnt Orange carries a large abstract geometric graphic with "PRISM" lettering beneath it. The graphics are chest-only — nothing on the back.

How should I wash and dry a 240 GSM cotton t-shirt?

Machine wash cold, inside out, with like colours. Tumble dry low or hang dry. Do not bleach. Wash the Acid Wash Black colourway separately for the first few washes, since acid-washed fabric releases some dye early on.