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Men's Merino Ultralight Crew T‑Shirt







Model Info +
Model is 6'0", has a 40" chest and is wearing size M
Men's Merino Ultralight Crew T‑Shirt
Our lightest Merino fabric, perfect for hotter climates. With the natural performance of Merino wool, this staple delivers a silky-soft, airy feel that keeps you cool and comfortable — no matter where the day takes you.
Learn Morelove us
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Odor resistant
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Temperature regulating
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Fast drying
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Anti-wrinkle
Our lightest Merino fabric, perfect for hotter climates. With the natural performance of Merino wool, this staple delivers a silky-soft, airy feel that keeps you cool and comfortable — no matter where the day takes you.
Learn More- Model is 6'0", has a 40" chest and is wearing size M
- Classic fit - Not too loose, not too snug — just straight cut through the chest and waist. Expect complete ease of movement and an everyday, modern fit.
- Product dimensions - See Measurements
- 87% Merino Wool, 13% Nylon
- 125gsm
- Soft touch
- Light and easy to pack
- Wrinkle resistant
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Fiber micron: Superfine 18.5
- Machine wash cold gentle cycle
- Turn inside out for washing
- Wash with mild detergent
- Lay flat to dry
- Do not tumble dry
- Do not iron

- LSLincoln S.Verified BuyerI recommend this productRated 5 out of 5 stars10/14/25Fantastic shirt!
Very happy with these, the first shirts I've ordered from Unbound Merino after wearing their pants for years. My favorite shirts ever were made by Outlier and called Dreamweight but they've stopped making them. These Ultralight shirts from Unbound Merino feel just as thin and perhaps even more comforable as they don't squeeze quite as tight. I'll definitely be ordering more!
How did you find the fit?Rated 0.0 on a scale of minus 2 to 2Runs Small True To Size Runs BigWas this helpful? - JWJeffrey W.Verified BuyerI recommend this productRated 5 out of 5 stars10/14/25Perfect Ultralight Crew Tee Shirt
I own many garments from Unbound Merino, but Inhave found my “Perfect Tee” in the Ultralight Crew Tee. I run “hot” and prefer to layer, and the weight and breathability of this Ultralight garment is absolutely apt on for me. My hope is that Unbound Merino will incorporate this fabric into more of their garments. If you prefer a lighter weight, you should check this out.
How did you find the fit?Rated 0.0 on a scale of minus 2 to 2Runs Small True To Size Runs BigWas this helpful? - AKAlexander K.Verified BuyerI recommend this productRated 5 out of 5 stars10/12/25Great Daily Shirt
I’ve tried a few Merino shirts before, but I was never really happy with the cut or thickness — most were either too heavy or just didn’t fit right for everyday use.
The Ultralight from Unbound is different. It’s lighter (in a good way) and the fit just works for me — a bit longer, not too wide, and super comfortable.
For reference, I’m about 6' (183 cm) and 80 kg, fairly average build, and I wanted something I could wear to work, after work, and for light activity. This shirt does all of that really well. (Size M)
Yeah, it’s on the pricey side, but honestly it feels worth it. It looks clean, feels great, and I can wear it all day or even a couple of days in a row without any issues.
Can’t say much yet about long-term durability, but so far I’m really happy — and I’ll grab some more soon.
How did you find the fit?Rated 0.0 on a scale of minus 2 to 2Runs Small True To Size Runs BigWas this helpful? - FTfelix t.Verified BuyerI recommend this productRated 5 out of 5 stars10/6/25Great T-Shirt!
I am very comfortable and happy with this T-Shirt!
How did you find the fit?Rated -1.0 on a scale of minus 2 to 2Runs Small True To Size Runs BigWas this helpful? - EDEtienne D. B.Verified BuyerI recommend this productRated 5 out of 5 stars9/14/25Really appreciated the comfort on hot and sticky days in Europe
When it is really hot and sticky this is perfect
How did you find the fit?Rated 0.0 on a scale of minus 2 to 2Runs Small True To Size Runs BigWas this helpful?
in
cm
Garment measurements | S | M | L | XL | XXL |
---|---|---|---|---|---|
Body Length | 2768.6 | 27.569.9 | 28.572.4 | 29.574.9 | 30.577.5 |
Chest Width | 19 1/448.9 | 20 1/451.4 | 21 1/453.9 | 22 1/456.5 | 23 1/459.1 |
Sleeve Length | 16.541.9 | 1743.2 | 17.544.5 | 1845.7 | 18.547.0 |
Measuring guide
Garment
To ensure you choose the right size, find an article of clothing that fits you well, lay it on a flat surface and measure the following points to compare.
Garment
To ensure you choose the right size, find an article of clothing that fits you well, lay it on a flat surface and measure the following points to compare.
1 Body length
Measure from high shoulder point to bottom hem edge.
2 Chest Width
Measure 1" below armpits, edge to edge.
3 Sleeve Length
Measure from centre back neck to shoulder seam to sleeve hem edge.
North America |
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USAFree Standard Shipping (2 to 6 business days) |
CanadaStandard Shipping- 5 to 7 business days - FREE |
International |
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Please note that international customers (outside of Canada and the United States) may be subject to taxes or duties upon delivery
Europe Zone 1Germany, Belgium, Croatia, Denmark, Estonia, Finland, France, Hungary, Ireland, Latvia, Luxembourg, Netherlands, Spain, Sweden, Switzerland, Poland, Portugal, Bulgaria, Greece, Italy, Malta, Austria, Cyprus
Europe Zone 2Iceland, Lithuania, Norway, Romania, Slovakia, Slovenia, Czechia, Gibraltar Standard shipping ($200 and up) 2 to 3 weeks - FREE
United KingdomStandard shipping 2 to 3 weeks - FREE
|
Australia, New ZealandStandard shipping ($200 and up) 2 to 4 weeks - FREE
Japan, Hong Kong SAR, South KoreaStandard shipping ($250 and up) 2 to 4 weeks - FREE
Malaysia, SingaporeStandard shipping ($250 and up) 2 to 4 weeks - FREE
Rest of worldStandard shipping 2 to 4 weeks - $19.99 |
RETURNS & EXCHANGES
We make it easy for you to try — and fall in love with — Unbound Merino.
All socks and underwear purchases are final sale and cannot be returned or exchanged for sanitary reasons. However, if you have any issue with your sock or underwear purchase, please reach out to us at help@unboundmerino.com so we can find a solution for you.
You can return or exchange all other clothing purchased directly from unboundmerino.com as long as it is unworn, unwashed, and in the original condition in which it was delivered. We are happy to offer a full refund or exchange for any reason within 90 days from the ship date.
Please note that exchanges are subject to availability, and a refund will be processed if the product you requested is unavailable. Final Sale items can't be returned or exchanged. Shipping costs on the original order (including duties and taxes) are not refundable.
- United States & Canada: Refunds are issued within 1 business day after the return package is scanned as “in transit” by the carrier.
- All Other Countries: Refunds are issued within 7 business days after the returned item arrives at our warehouse. International returns typically take 3–4 weeks in transit before arrival.
Refunds are issued to the original payment method on the order, which may include gift cards if one was used.
Once you start a return or exchange, please note you have 28 days to ship the item back to us before the request expires. For orders delivered outside the US or Canada, we are unable to provide prepaid return labels at this time.
If you have any further questions, please contact us at help@unboundmerino.com
The Softness of Merino, Measured in Microns
The quality of Merino wool is defined by fiber diameter, measured in microns, where smaller means softer.
Unlike many Merino brands, we focus on finer Merino wool, prioritizing the softest, most refined fibers to create an experience of comfort that lasts.

Cool Comfort With A Featherweight Feel.
- Lightweight Merino wool lends a luxurious drape that feels breezy on the skin.
- Moisture-wicking, fast-drying fabric stays comfortable even in hot climates.
- Effortless and versatile design fits every travel occasion.
- Merino wool’s antibacterial properties means minimal washing.
- Lightweight and packable for easy travel.
“The perfect T-shirt can see you through almost any situation, and Unbound makes a strong bid for the title with their chic Merino designs.”
"It's the most popular T-shirt in our Merino guide and well-loved by travelers. It's very soft and lightweight, and it packs down to a tiny roll."
“These tees have a sophisticated European elegance to them, thanks to both the material and design. Just looking at them makes you feel chic.”
“Between the flattering fit and the classic style, it's a great option for travel.”
"I may hold off on washing this T-shirt for another few weeks. It miraculously looks and smells like it was just cleaned."

"This is the perfect base layer as it’s super lightweight and is anti-wrinkle and moisture-wicking. This can quickly become your new closet staple at home and on the road."
"I may hold off on washing this T-shirt for another few weeks. It miraculously looks and smells like it was just cleaned."
"Lightweight and breathable, this shirt has a perfectly soft feel. The thin material is moisture-wicking, making this great for layering or wearing on its own."
"Unbound Merino sits at the intersection of travel gear and luxe knitwear, offering wool garments in timeless styles. They use superfine premium Merino wool that’s Woolmark-certified."
"This shirt's wool fibers lock odor molecules within and only release them on washing — which means less washing and more wearing. That makes this the ultimate travel top."



NATURE'S MIRACLE FABRIC
Every Merino wool fiber has a waxy coating called Lanolin, which helps wick moisture away from your body, and act as a safeguard against odor-causing bacteria. This is what allows our Merino wool to stay breathable and dry while smelling and feeling fresh, no matter what you put it through.
Regulates your temperature
Wicks Moisture
Perfect for packing
Machine Washable

NATURE'S MIRACLE FABRIC
Regulates your temperature
Wicks Moisture
Perfect for packing
Machine Washable

SOFTER THAN COTTON
This wool isn’t like your typical itchy sweater. We only use superfine Merino wool, resulting in a luxuriously silky soft feel that’s lighter and more plush than your average Merino or cotton. And unlike most clothes, it'll also maintain its form over time and won’t get ruined after a wash.


NATURAL AIRFLOW
With Merino, your body heat can pass through the space between our superfine, woven fibers, regulating your body temperature while keeping you cool and comfortable.
Ready-to-Go Wrinkle Resistance
A Merino wool fiber resembles a tightly coiled spring, also called a crimp. Pull it and it will recoil back into shape every single time. You’ll never need to iron this tee.



EASY CARE
You won’t have to wash this tee much at all. However, when it comes time for a refresh, simply add it to your load at the normal or cool temperature setting and then lay flat to dry.
ABOUT OUR WOOL
- Sustainably sourced from independent, cruelty-free wool farms.
- The Global Recycled Standard (GRS) is a voluntary product standard for tracking and verifying the content of recycled materials in a final product.
- RWS (Responsible Wool Standard) certified, adheres to the welfare of the sheep and their land.



Eric Stoen
Unbound Merino’s shirts are absolutely perfect for travel – good in every situation. They’ve simplified my packing so much that I’m now a carry-on traveler for the first time in my life!
Eric Stoen

Jonathan Goodman
Having an every day outfit I feel good in reduces cognitive fatigue and allows me to put all my focus on the people I love and the things I want to accomplish.
Jonathan Goodman

Eric J.
There was no way I could have possibly traveled as lightly as I did without my Unbound Merino gear. I still can’t believe that these clothes feel so good and really don’t smell after so many days worn consecutively. It’s just awesome.
Eric J.

James “Iron Cowboy” Lawrence
Unbound Merino performs as promised, and has totally simplified how I pack when I travel the world. The shirts are AWESOME and the underwear feels like having your balls cradled by the hands of angels.
James “Iron Cowboy” Lawrence

Ken S.
I’ve worn one Unbound Merino T-shirt for most of the 18 days I’ve been traveling through Hong Kong and Thailand. Super impressed that this shirt does as promised, it doesn’t smell at all despite no washing.
Ken S.

Perfect for Travel
YOU’LL PACK LIGHTER
With clothing that doesn’t smell after every use, you can pack less, allowing you to ditch the suitcase and travel with just a small backpack.
YOU’LL SAVE MONEY
These days, most airlines are going to charge you for anything other than a carry-on. Start packing lighter and doing less laundry, and save your money for the real experiences.
YOU’LL SAVE TIME
Never check luggage or worry about airports losing your stuff. With fewer but better clothes you’ll blaze through airports like a seasoned pro.
What People Are Saying
Be The First To Review
Your thoughts are important to us to keep improving our products
- LSLincoln S.Verified BuyerI recommend this productRated 5 out of 5 stars10/14/25Fantastic shirt!
Very happy with these, the first shirts I've ordered from Unbound Merino after wearing their pants for years. My favorite shirts ever were made by Outlier and called Dreamweight but they've stopped making them. These Ultralight shirts from Unbound Merino feel just as thin and perhaps even more comforable as they don't squeeze quite as tight. I'll definitely be ordering more!
How did you find the fit?Rated 0.0 on a scale of minus 2 to 2Runs Small True To Size Runs BigWas this helpful? - JWJeffrey W.Verified BuyerI recommend this productRated 5 out of 5 stars10/14/25Perfect Ultralight Crew Tee Shirt
I own many garments from Unbound Merino, but Inhave found my “Perfect Tee” in the Ultralight Crew Tee. I run “hot” and prefer to layer, and the weight and breathability of this Ultralight garment is absolutely apt on for me. My hope is that Unbound Merino will incorporate this fabric into more of their garments. If you prefer a lighter weight, you should check this out.
How did you find the fit?Rated 0.0 on a scale of minus 2 to 2Runs Small True To Size Runs BigWas this helpful? - AKAlexander K.Verified BuyerI recommend this productRated 5 out of 5 stars10/12/25Great Daily Shirt
I’ve tried a few Merino shirts before, but I was never really happy with the cut or thickness — most were either too heavy or just didn’t fit right for everyday use.
The Ultralight from Unbound is different. It’s lighter (in a good way) and the fit just works for me — a bit longer, not too wide, and super comfortable.
For reference, I’m about 6' (183 cm) and 80 kg, fairly average build, and I wanted something I could wear to work, after work, and for light activity. This shirt does all of that really well. (Size M)
Yeah, it’s on the pricey side, but honestly it feels worth it. It looks clean, feels great, and I can wear it all day or even a couple of days in a row without any issues.
Can’t say much yet about long-term durability, but so far I’m really happy — and I’ll grab some more soon.
How did you find the fit?Rated 0.0 on a scale of minus 2 to 2Runs Small True To Size Runs BigWas this helpful? - FTfelix t.Verified BuyerI recommend this productRated 5 out of 5 stars10/6/25Great T-Shirt!
I am very comfortable and happy with this T-Shirt!
How did you find the fit?Rated -1.0 on a scale of minus 2 to 2Runs Small True To Size Runs BigWas this helpful? - EDEtienne D. B.Verified BuyerI recommend this productRated 5 out of 5 stars9/14/25Really appreciated the comfort on hot and sticky days in Europe
When it is really hot and sticky this is perfect
How did you find the fit?Rated 0.0 on a scale of minus 2 to 2Runs Small True To Size Runs BigWas this helpful?