White 300GSM Heavyweight Oversized T-Shirt
Cotton Tee
300GSM HEAVYWEIGHT 100% COTTON
FAR LESS SEE THROUGH THAN STANDARD WHITES
BOXY FIT WITH DROPPED SHOULDERS
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 White Oversized Heavyweight T-Shirt is the crisp, clean staple every wardrobe needs, reworked by UNKNOWN FORM with a relaxed boxy cut. Dropped shoulders and a wider body give it an easy streetwear shape, and the plain white colour works as a standalone piece in summer or as a layer under jackets, overshirts and hoodies when the weather cools. It is cut as a unisex fit, designed to be worn every day.
It is made from 100% cotton with a thick, heavyweight feel, so it is far less see-through than a standard white tee and holds its shape after wear. 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 for something closer to the body. Check the size chart below, as measurements are taken flat and may vary by 1 to 3 cm.
To keep the white bright, wash it only with other whites or light colours, turn it inside out, machine wash cold and hang dry. Avoid tumble drying and high heat, as cotton can shrink. A clean white heavyweight tee is the most useful piece you can own, so it is worth keeping one ready at all times.
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
THE CLEAN STAPLE
A RELAXED, BOXY CUT IN CRISP WHITE THAT WORKS ON ITS OWN IN SUMMER OR UNDER JACKETS AND HOODIES WHEN IT COOLS DOWN.
NOT YOUR THIN WHITE TEE
HEAVYWEIGHT 300GSM COTTON IS FAR LESS SEE THROUGH THAN A STANDARD WHITE TEE AND HOLDS ITS SHAPE AFTER WEAR.
SOFT, DENSE COTTON
A THICK HAND FEEL WITH A RIBBED CREW NECK THAT SITS NEATLY AND 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
IS THE WHITE SEE THROUGH?
IT IS FAR LESS SEE THROUGH THAN A STANDARD WHITE TEE THANKS TO THE THICK 300GSM COTTON.
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.
HOW DO I KEEP IT WHITE?
WASH IT ONLY WITH WHITES OR LIGHT COLOURS, TURN IT INSIDE OUT, MACHINE WASH COLD AND HANG DRY. 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.