Men's Long Sleeves Pack Builder

4.9
Rated 4.9 out of 5 stars
2,158 Reviews
Regular price £235
Regular price Sale price £235
Save £29
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Men's Long Sleeves Pack Builder

4.9
Rated 4.9 out of 5 stars
2,158 Reviews
Regular price £235
Regular price Sale price £235
Save £29

Ultra light & incredibly warm - We took all the benefits of our 100% Merino wool T-shirts and made a sleek, versatile and ultra-soft long sleeve crew. With our pack builder, the more you buy, the more you save!

Learn More
Long Sleeve 1
Color Black
Size
Size guide
Long Sleeve 2
Color Black
Size
Size guide
Long Sleeve 3
Total £158. You are saving £18.

Ultra light & incredibly warm - We took all the benefits of our 100% Merino wool T-shirts and made a sleek, versatile and ultra-soft long sleeve crew. With our pack builder, the more you buy, the more you save!

Learn More
Only 4 payments of £58.75 with
Free delivery on all UK orders
Free easy returns
Why our customers
love us
Our founder
reveals all
  • Odor resistant Odor resistant
  • Temperature regulating Temperature regulating
  • Fast drying Fast drying
  • Anti-wrinkle Anti-wrinkle
Fabric and Details
  • 100% Merino wool jersey
  • 190gsm
  • Fiber micron: Superfine 17.5
15 µm
17.5 µm
25 µm
Care instructions
  • Wash in normal to cool temperature setting.
  • Wash with like colors.
  • Lay flat to dry in shade.
  • Do not bleach.
  • Do not tumble dry.
Merino Care 101
Watch video

ULTRA LIGHT & INCREDIBLY WARM.

  • Less washing with antibacterial clothing that stays dry, clean and fresh.
  • Casual and versatile style with no flashy logos.
  • Dries really fast, keeping you comfortable.
  • Won't smell after weeks of wear, unlike cotton and synthetics.
  • Pack less with clothing that doesn't need a wash after each use.

NATURE'S MIRACLE FABRIC

Merino wool fibers allow it to wick moisture away from your skin, which ensures comfort and moisture management. Merino wool’s complex structure locks odor molecules within the fiber and only releases them on washing. This ensures Merino wool resists unpleasant odors often experienced with other fibers.

Never Smells

Never Smells

Dries Really Fast

Dries Really Fast

Wicks Moisture

Wicks Moisture

Perfect for packing

Perfect for packing

NATURE'S MIRACLE FABRIC

Never Smells

Never Smells

Dries Really Fast

Dries Really Fast

Wicks Moisture

Wicks Moisture

Perfect for packing

Perfect for packing

SOFTER THAN COTTON

This wool isn’t like your typical itchy sweater. We only use superfine (17.5 micron) Merino wool, resulting in a luxuriously silky soft, shirt that’s lighter and much softer than the average Merino or cotton shirt. It'll also maintain its form over time and not get ruined after a wash, like most clothes these days.

Learn more about the benefits of Merino wool
Watch video
NATURAL AIRFLOW

NATURAL AIRFLOW

With Merino, your body heat can pass through the space between our woven superfine fibers, regulating your body temperature and keeping you cool & comfortable.

READY TO GO WRINKLE RESISTANCE

READY TO GO WRINKLE RESISTANCE

A Merino wool fiber resembles a tight 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 shirt, making it perfect for travel.

EASY CARE

EASY CARE

You won’t have to wash this shirt 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.
  • Woolmark® certified Merino wool means you can expect the highest standards related to fiber content, performance, color fastness, and dimensional stability.
  • WRAP (Worldwide Responsible Accredited Production) certified production.
  • Tested to ensure our clothing stands up to the rigors of travel and continual use.
Woolmark
WRAP

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

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

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

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

4.9
Rated 4.9 out of 5 stars
Based on 2,158 reviews
Slide 1 selected
Total 5 star reviews: 2k Total 4 star reviews: 112 Total 3 star reviews: 24 Total 2 star reviews: 6 Total 1 star reviews: 17
How did you find the fit?Rated -0.0 on a scale of minus 2 to 2
2,158 reviews
  • IR
    Istvan R.
    Verified Buyer
    Reviewing
    Men's Long Sleeve Merino Crew Black / L
    I recommend this product
    What size did you buy? L
    Rated 5 out of 5 stars
    2/16/26
    Tried and true!

    I have been buying Unbound Merino items since it was recommended by a travel agent for a safari. Traveling all around the world with these is a game changer. Even got my wife hooked on these and she would buy the small size before the women’s line came out. The long- sleeved merino crew and transit pants +/- a vest or hoodie is my very comfortable plane outfit. No need to think - I have them in all colors.

    How did you find the fit?Rated 0.0 on a scale of minus 2 to 2
  • AR
    Aileen R.
    Verified Buyer
    Reviewing
    Men's Long Sleeve Merino Crew Navy / L
    I recommend this product
    What size did you buy? L
    Rated 4 out of 5 stars
    2/16/26
    Navy blue

    Soft material, pretty comfortable so far.

    How did you find the fit?Rated 0.0 on a scale of minus 2 to 2
  • IB
    Ian B.
    Verified Buyer
    Reviewing
    Men's Long Sleeve Merino Crew Black / M
    I recommend this product
    What size did you buy? M
    Rated 5 out of 5 stars
    2/15/26
    Unbound is taking over my closet

    This is my third order from Unbound, and far from my last. I bought the long sleeve to see if I like it as much as the crew tees. I struggle with long sleeve shirts because they're often too short in either the sleeve or waist but these are a perfect extension from the tee and I didn’t have either of those problems. I’ll be ordering more.

    How did you find the fit?Rated 0.0 on a scale of minus 2 to 2
  • MW
    michael W.
    Verified Buyer
    Reviewing
    Men's Long Sleeve Merino Crew Charcoal / XL
    I recommend this product
    What size did you buy? XL
    Rated 5 out of 5 stars
    2/14/26
    great shirt!

    met expectations. had to do an exchange which was relatively painless. inclusion of shirt dimensions for both regular and tall sizes very helpful. yes they are expensive but seem worth the price.

    How did you find the fit?Rated -1.0 on a scale of minus 2 to 2
  • JN
    John N.
    Verified Buyer
    Reviewing
    Men's Long Sleeve Merino Crew Charcoal / XL
    I recommend this product
    What size did you buy? XL
    Rated 5 out of 5 stars
    2/14/26
    Simply the best

    Long sleeve merino crew neck is my new go to first layer. Important to be careful how you dry it after washing, but it is by far my favorite under garment. Only improvement I can recommend is a light weight version for use in the summertime.

    How did you find the fit?Rated 0.0 on a scale of minus 2 to 2