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Men's Active Merino T‑Shirt







Model Info +
Model is 5'11", has a 40" chest and is wearing size M
Men's Active Merino T‑Shirt
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Odor resistant
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Fast drying
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Wicks moisture
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Light and breathable
- Model is 5'11", 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
- 100% merino jersey
- 165gsm
- "Me Cool" finish
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Fiber micron: Superfine 18.5
- Machine wash warm gentle
- Wash with like colors
- Do not bleach
- Lay flat to dry
- Iron in low temperature
- Do not dry clean

in
cm
Body Measurements |
S | M | L | XL | XXL |
---|---|---|---|---|---|
Neck | 14-14.535.5-37 | 15-15.538-39.25 | 16-16.540.5-42 | 17-17.543-44.5 | 18-18.545.75-47 |
Chest | 37-3894-96.5 | 39-4099-101.5 | 41-42104-106.5 | 43-44109-112 | 45-46114.5-117 |
Waist | 29-3073.5-76 | 31-3279-81 | 33-3484-86.5 | 35-3689-91.5 | 37-3894-96.5 |
Arm Length | 32-3381-84 | 33-3484-86.5 | 34-3586.5-89 | 35-3689-91.5 | 36-3791.5-94 |
Garment Measurements |
S | M | L | XL | XXL |
---|---|---|---|---|---|
Body Length | 2768.5 | 27.570 | 28.572 | 29.575 | 30.577.5 |
Chest Width | 19.549.5 | 20.552 | 21.554.5 | 22.557 | 23.560 |
Sleeve Length | 16.542 | 1743 | 17.544.5 | 1846 | 18.547 |
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.
United Kingdom |
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DHL Direct Parcel - 1 to 2 weeks - $11.54 International Delivery - 2 to 4 weeks - FREE
Please note that international customers (outside of Canada and the United States) may be subject to taxes or duties upon delivery.
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International |
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USAFree Priority Delivery- 7 to 9 business days - FREE
CanadaStandard Delivery- 5 to 7 business days - FREE
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 DHL Parcel Priority - 1 to 3 weeks - $16.45 International Delivery ($200 and up) - 2 to 3 weeks - FREE
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Australia, New ZealandDHL Direct Parcel - 1 to 2 weeks - $17.42
Japan, Hong Kong SAR, South KoreaDHL Parcel Priority - 1 to 3 weeks - $21.74
Malaysia, SingaporeDHL Parcel Priority - 1 to 3 weeks - $16.33
RussiaInternational Delivery - 3-6 weeks - $35
Rest of worldDHL Express Worldwide - 4-7 days - Calculated at checkout |
RETURNS & EXCHANGES
We make it easy for you to try — and fall in love with — Unbound Merino.
If for any reason a piece is not right for you (or you need a different size), send it back for free. It’s simple: just use our complimentary return delivery and prepaid labels to get it back to us fast.
You can return or exchange clothing purchased directly from unboundmerino.co.uk as long as it is unworn, unwashed, and in the original condition in which it was delivered. UK and international customers are responsible for return shipping costs, but a full refund will still be issued once the item is received and approved. We are happy to offer a full refund or exchange for any reason within 90 days from the delivery date.
Please note that exchanges are subject to availability, and a refund will be processed if the product you requested is unavailable. All socks and underwear purchases are final sale and cannot be returned or exchanged for sanitary reasons. Delivery costs on the original order (including duties and taxes) are not refundable. Refunds are issued to the original payment method on the order, which may include gift cards if one was used.
Visit returns.unboundmerino.com to begin your return or exchange.
Once you start a return or exchange, please note you have 28 days to deliver the item back to us before the request expires. For orders delivered to the UK, 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.

THE ONLY WORKOUT TEE
YOU NEED TO PACK.
- Thermoregulating fabric feels cool on the skin, no matter your workout intensity.
- Clean-lined, slim-fit style with no flashy logos.
- Flatlock seams and a tagless back deliver a friction-less feel.
- Merino wool’s antibacterial properties means minimal washing.
- Won't smell after weeks of wear, unlike cotton and synthetics.
“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.”
“This shirt is capable of handling just about any terrain... This is the go-to shirt for everything from the trail to the beach to the bar for happy hour.”
“I may hold off on washing this T-shirt for another few weeks. It miraculously looks (and smells!) like it was just cleaned.”
“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.”
NATURE’S MIRACLE FABRIC…IN THE GYM
Everything you love about natural Merino wool, now made for your next workout.
Antibacterial
Odor-resistant
Fast drying

NATURE’S MIRACLE FABRIC…IN THE GYM
Antibacterial
Odor-resistant
Fast drying
TRAVEL READY,
JUST LIKE YOU
Unbound Active makes checked luggage a thing of the past. Just one set of gear will get you through every run, rep, and bootcamp without needing a wash.

THE MERINO FEEL
Start sweating in synthetics and you’re in for a clammy, sticky experience. Merino’s moisture-wicking properties help you stay dry, fresh and feeling your best from start to finish.


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
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Your thoughts are important to us to keep improving our products
- MTMarco T.Verified BuyerI recommend this productRated 5 out of 5 stars6/12/25Love it
Great fit
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? - WGWilliam G.Verified BuyerI recommend this productRated 5 out of 5 stars5/15/25Good fit, great performance
Mens small fits similar to the small size causal t-shirts. I have put about 500 trail running miles into it now and it is still in great shape, no pilling, no smells, no stains, no shrinking. Going to grab a few more but wish the color options were more colorful but muted like I see running through the high desert and low alpine zones.
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? - EMemilio m.Verified BuyerI recommend this productRated 5 out of 5 stars5/15/25Great Shirt
This is the perfect workout shirt and great to run errands as well. Soft material and it won't stink after each workout!! I highly recommend it.
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? - NCNicholas C.Verified BuyerI recommend this productRated 5 out of 5 stars5/14/25Almost Perfect
I must say that this is the best “activewear” short-sleeve shirt I have ever worn. My only two complaints are that it is a bit pricey and that it could use underarm gussets. Underarm gussets would improve the mobility, comfort, and durability of this shirt. I would give it 4.5/5, but there is no option for that, so I’ll give 5/5.
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? - DBDoug B.Verified BuyerI recommend this productRated 5 out of 5 stars5/6/25Light and Great Fit
I love to use these for active pursuits during the summer months. They dry quickly, fit well, and go several wears without washing.
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?