Men's Lightweight Long Sleeve Shirt
Casual Button Up
LIGHTWEIGHT, BREATHABLE FABRIC
TAILORED BUT RELAXED FIT
TEN COLOURS, SIZES S TO 5XL
DELIVERED IN 6–13 BUSINESS DAYS · TRACKED
FREE SHIPPING OVER NZ$150 (OTHERWISE NZ$9.95) · 30 DAY RETURNS
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 Men's Lightweight Long Sleeve Shirt from UNKNOWN FORM is designed for men who want relaxed sophistication with dependable comfort. A lightweight, breathable fabric keeps it comfortable through the day, while the clean, versatile design moves easily from casual weekends to laid-back office days. It looks polished without ever feeling stiff. It is a reliable everyday shirt that looks just as good on a relaxed weekend as it does on a casual day at the office, and it is easy to dress up or down.
The tailored but relaxed fit gives you a sharp shape with plenty of room to move. Roll the sleeves for a more casual look, or wear it buttoned with chinos when you want something smarter. It works well on its own or layered under a jacket, overshirt or knit, and pairs easily with jeans, chinos or casual trousers. With ten colours to choose from and sizes running from S to 5XL, there is an easy option for almost every wardrobe.
To keep it looking its best, machine wash cold with similar colours and hang dry. Avoid tumble drying and high heat to help prevent shrinkage. A quick iron or steam will keep it crisp. As colours can look slightly different between screens, the shade you receive may vary a little from the photos.
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
POLISHED, NEVER STIFF
A LIGHTWEIGHT, BREATHABLE SHIRT THAT MOVES FROM CASUAL WEEKENDS TO LAID BACK OFFICE DAYS AND STAYS COMFORTABLE THROUGHOUT.
ROLL IT OR BUTTON IT
ROLL THE SLEEVES FOR A CASUAL LOOK, OR KEEP IT BUTTONED WITH CHINOS WHEN YOU WANT SOMETHING SMARTER.
LAYERS WITH EVERYTHING
WEAR IT ON ITS OWN OR UNDER A JACKET, OVERSHIRT OR KNIT, WITH JEANS, CHINOS OR CASUAL TROUSERS.
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?
TAILORED BUT RELAXED, SO IT KEEPS A SHARP SHAPE WITH ROOM TO MOVE. SIZES RUN FROM S TO 5XL.
WHAT COLOURS ARE THERE?
TEN, INCLUDING WHITE, GRAY, BLUE, BLACK, NAVY BLUE, KHAKI AND LIGHT GREEN.
HOW DO I WASH IT?
MACHINE WASH COLD WITH SIMILAR COLOURS AND HANG DRY. AVOID THE DRYER, AND A QUICK IRON OR STEAM WILL KEEP IT CRISP.
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?
MOST OF OUR PIECES HAVE AN OVERSIZED, BOXY FIT WITH DROPPED SHOULDERS. EACH PRODUCT PAGE HAS ITS OWN FIT ADVICE AND A SIZE CHART IN CM, SO CHECK THAT 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.