Black 300GSM Heavyweight Oversized T-Shirt
Cotton Tee
300GSM HEAVYWEIGHT 100% COTTON
BOXY FIT WITH DROPPED SHOULDERS
DEEP BLACK THAT GOES WITH ANYTHING
BUNDLE AND SAVE 15%
PAIR IT WITH ANY BOTTOMS AND GET 15% OFF THE BOTTOMS. APPLIED AUTOMATICALLY IN YOUR CART. SHOP BOTTOMS
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FREE SHIPPING OVER NZ$150 / 30 DAY RETURNS / TRACKED DELIVERY
The Black Oversized Heavyweight T-Shirt is UNKNOWN FORM's take on the everyday essential: a clean, plain tee with a relaxed boxy cut that looks right whether you dress it up or keep it simple. Dropped shoulders and a wider body give it an easy streetwear silhouette, while the solid black colour keeps it versatile enough to wear with wide-leg denim, cargos, shorts or tailored trousers. It is cut as a unisex fit, made for everyday wear.
It is made from 100% cotton with a thick, heavyweight feel, so it holds its shape and drapes properly instead of clinging. The ribbed crew neck sits neatly and the short sleeves keep the proportions relaxed. Because the cut is oversized, take your usual size for a loose, boxy fit, or size down if you prefer something closer to the body. Check the size chart below, as measurements are taken with the garment laid flat and may vary by 1 to 3 cm.
To keep the black deep and the cotton soft, turn the tee inside out, machine wash cold with similar colours and hang dry out of direct sunlight. Avoid tumble drying and high heat, as cotton can shrink. A simple, well-made staple like this is the base of any outfit, so it is worth keeping a couple on rotation.
Size Chart
| Size | S | M | L | XL | XXL | 3XL | 4XL |
|---|---|---|---|---|---|---|---|
| Chest | 106 cm / 41.7" | 112 cm / 44.1" | 118 cm / 46.5" | 124 cm / 48.8" | 130 cm / 51.2" | 136 cm / 53.5" | 142 cm / 55.9" |
| Length | 69 cm / 27.2" | 71 cm / 28" | 73 cm / 28.7" | 75 cm / 29.5" | 77 cm / 30.3" | 79 cm / 31.1" | 80 cm / 31.5" |
| Shoulder | 50 cm / 19.7" | 52 cm / 20.5" | 54 cm / 21.3" | 56 cm / 22" | 58 cm / 22.8" | 60 cm / 23.6" | 62 cm / 24.4" |
| Sleeve | 22 cm / 8.7" | 22.5 cm / 8.9" | 23 cm / 9.1" | 23.5 cm / 9.3" | 24 cm / 9.4" | 24.5 cm / 9.6" | 25 cm / 9.8" |
SHIPPING AND DELIVERY
SHIPPING AND DELIVERY
Shipping Information: Free standard shipping on orders of NZ$150, A$125, £70, C$125 or US$90 and over, with a flat rate below that. We process orders within 1–3 business days. After dispatch, your order will arrive in 5–10 business days.
RETURNS AND REFUNDS
RETURNS AND REFUNDS
We want you to love your UNKNOWN FORM purchase! If you’re not completely satisfied, enjoy 30-day easy returns with free replacements for damaged or defective items.
You can contact us anytime at info@unknownform.com.
We’re always here for you!

OVER NZ$150, A$125, £70, C$125, US$90
REAL SUPPORT, ZERO SCRIPTED RESPONSES
30 DAYS TO SWAP OR RETURN
100% SECURE PAYMENT PROCESSING
BUILT BOXY
DROPPED SHOULDERS AND A WIDER BODY GIVE IT A RELAXED, BOXY SHAPE THAT SITS RIGHT WITH WIDE LEG DENIM, CARGOS OR SHORTS.
HOLDS ITS SHAPE
300GSM COTTON HAS REAL WEIGHT, SO IT DRAPES INSTEAD OF CLINGING AND STAYS SHARP WEAR AFTER WEAR.
FEEL THE WEIGHT
A THICK, SOFT COTTON HAND FEEL WITH A NEAT RIBBED CREW NECK THAT KEEPS ITS FORM.
COMPLETE THE FIT
ADD ANY BOTTOMS TO A TOP AND THE BOTTOMS ARE 15% OFF IN YOUR CART.
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FREQUENTLY ASKED QUESTIONS
HOW DOES IT FIT?
IT HAS AN OVERSIZED, BOXY FIT. TAKE YOUR USUAL SIZE FOR A LOOSE LOOK, OR SIZE DOWN FOR SOMETHING CLOSER TO THE BODY. A SIZE M HAS A 112 CM CHEST AND 71 CM LENGTH.
IS 300GSM ACTUALLY THICK?
YES. 300GSM IS A TRUE HEAVYWEIGHT COTTON, NOTICEABLY THICKER THAN A STANDARD TEE, SO IT HOLDS ITS SHAPE AND DRAPES PROPERLY.
HOW DO I STOP THE BLACK FADING?
TURN IT INSIDE OUT, MACHINE WASH COLD WITH SIMILAR COLOURS AND HANG DRY OUT OF DIRECT SUNLIGHT. AVOID TUMBLE DRYING AND HIGH HEAT, AS COTTON CAN SHRINK.
DO YOU CHARGE FOR SHIPPING?
STANDARD SHIPPING IS FREE ON ORDERS OF NZ$150, A$125, £70, C$125 OR US$90 AND OVER. BELOW THAT, IT'S A FLAT NZ$9.95, A$8.95, £4.95, C$8.95 OR US$5.95, CHARGED IN YOUR LOCAL CURRENCY.
DO YOU SHIP INTERNATIONALLY?
YES. WE SHIP TO NEW ZEALAND, AUSTRALIA, THE UNITED KINGDOM, CANADA AND THE UNITED STATES. SHIPPING COSTS AND FREE SHIPPING MINIMUMS FOR EACH COUNTRY ARE IN OUR SHIPPING POLICY.
WHAT IF MY ITEM IS DEFECTIVE OR DAMAGED?
EMAIL info@unknownform.com WITH YOUR ORDER NUMBER AND A PHOTO. WE COVER RETURN SHIPPING AND WILL REPAIR, REPLACE OR REFUND THE ITEM DEPENDING ON THE PROBLEM, AS REQUIRED BY THE CONSUMER GUARANTEES ACT.
CAN I EXCHANGE FOR A DIFFERENT SIZE OR COLOUR?
YES. EMAIL US WITH YOUR ORDER NUMBER AND THE SIZE OR COLOUR YOU WANT. SEND THE ORIGINAL BACK AS A CHANGE-OF-MIND RETURN, AND WE'LL SHIP THE REPLACEMENT FREE ONCE IT ARRIVES.
WHAT IS YOUR RETURN POLICY?
YOU CAN RETURN UNWORN, UNWASHED ITEMS WITH THEIR TAGS ON WITHIN 30 DAYS OF DELIVERY. FOR CHANGE-OF-MIND RETURNS, YOU PAY RETURN SHIPPING. FAULTY OR WRONG ITEMS ARE FREE TO RETURN. EMAIL US BEFORE SENDING ANYTHING BACK.
HOW DO YOUR CLOTHES FIT?
OUR PIECES HAVE AN OVERSIZED, BOXY FIT WITH DROPPED SHOULDERS. IF YOU PREFER A REGULAR FIT, SIZE DOWN. CHECK THE SIZE CHART ON EACH PRODUCT PAGE BEFORE ORDERING.
WHERE DO ORDERS SHIP FROM?
ORDERS ARE DISPATCHED FROM OUR FULFILMENT PARTNERS AND DELIVERED BY LOCAL CARRIERS IN YOUR COUNTRY, SUCH AS NZ POST IN NEW ZEALAND. DELIVERY USUALLY TAKES 6–13 BUSINESS DAYS, AND YOU'LL GET A TRACKING LINK BY EMAIL.
UNKNOWN FORM
Built for real wear.