Men's Nuyarn® Merino Wool Long Sleeve


23 reviews
Color: Cypress Green
Best Used For:

Hiking. Camping. Travel. Casual. Running. Hunting. Outdoors.

Cover all your bases with the Wūru® Men’s Merino Long Sleeve, now featuring Nuyarn® and Made in the USA. Now T-Shirt season is 365 days a year. Style where you want it – Technical where you need it. 

The World’s First Performance Wool. Nuyarn® offers a proprietary spinning technology that releases the natural performance characteristics of wool like no other. Making the once impossible, possible.  

Technology you can feel!


Product Weight Medium: 5.0oz

Fabric: 85% Merino, 15% Nylon - 17.5 Micron

Fabric Weight: 125gsm (Equivalent warmth: 168gsm ringspun fabric)

Featuring Nuyarn® Technology

Knit in Vietnam at Bluesign® & Global Organic Textiles Accredited Facility

Made From: Non-mulesed Australian merino wool

Spun in an OEKO-TEX® Accredited Facility – Does not use environmentally harmful chemicals meeting or exceeding worldwide safety standards 


  • Handmade in the USA from premium Australian wool
  • UPF 40+ sun protection
  • Athletic fit for all-day wear
  • Locker Loop for quick-drying
  • Naturally odor resistant and antibacterial.
  • Exceptionally soft Merino wool for pure comfort.
  • Blended with a touch of nylon for extra durability.
  • Made from sustainable and ethically sourced fabric.


Machine Wash Cold Gentle Cycle.  Do Not Bleach.  Tumble Dry Low (hang/flat dry for best results).  Cool Iron As Needed.  Do Not Dry Clean.

Customer Reviews

Based on 23 reviews
RR (Philadelphia, US)
Great feel color and fit

My wife loves the flint stone blue color, and I was looking for something other than black and gray, which I normally seem to wear. The feel is great. I am 5’8” but work out and barrel chested. The XL size fits my body perfectly, but sleeves are a little long, which is normal for any xl long sleeve shirt I order from anyone . I really like that Wuru is a US company with their products made in the US. A lot of other companies selling marino wool clothing aren’t and don’t. Keep up the good work. Definitely want to buy more of your products

HuntLeague -.j. (Monument, US)
THE BEST! Will be ordering more

Short Review: These shirts are amazing and I will be supporting Wuru for years to come. Nuyarn is the real deal and Wuru did a great job designing and sowing these shirts! BUY as many as you can afford and add these to your birthday and Christmas list.

Longer Review: Over the past few years I have slowly converted to wool from polyester. I started wearing Nuyarn merino shirts made by a different company on my backcountry hunts. I was packing in to places for 5-7 days and polyester felt good day one but was terrible with oder management and didn't insulate as well after you got sweaty from a long hike. I started to notice I just liked merino wool products a lot better.

After realizing I like merino wool in the backcountry I decided it is time to ditch the polyester gym shirts as well. I was a little concerned but decided to bite the bullet, spend the money on merino shirts. I was a little concerned about sizing so I sent one email to Wuru and received a quick response before ordering. I went with the XL which fits me perfect at 6'2" and just under 200lbs. Even after washing I love the fit of these shirts (I ordered 3).

I wore this shirt for the first time during a brutal CrossFit workout outside in the heat. After the work out I got a little nervous as the shirt smelled a little like a farm (I think my sweat brought back some of the original sheep smell). After washing it though and wearing it again that smell is no longer present. Fast forward and I have worn merino shirts every day for ever a week. I even did a sniff test were I wore the same shirt without washing it for 3 different CrossFit workouts over the course of several days. I know that is disgusting but the point was to test the shirt. They are more of an investment than my regular gym shirts so I want to actually test and compare them to other shirts I own. I am sold! Wuru crushed it with this shirt from the Nuyarn fabric to the fit and finish. Add the fact that they were designed in CO and sown in Utah and that just puts the icing on the cake.

Keep it up Wuru!

Becky K. (Omaha, US)
Nice and warm wool without the bulk

Perfect for winter layering or spring and fall as a shirt. Nice and warm wool without the bulk. My husband in WI and my arborist son in law in OR love these shirts!

Matt S. (West Jordan, US)
The perfect shirt for high energy activity

I have had this shirt for a bit over a month (along with a couple short sleeve and zip-up) now and it rules. I am 6' and about 170lbs (with a shortish torso) and the medium fits me great. I was looking for a shirt to go out running in that would be good in moderate temps by itself and couple layer over for really cold runs. It has excelled in both roles. It is just warm enough to be used by itself on runs down to close to freezing without a lot of wind. But throw a wind breaker over top and it is good to the low teens for me. All while keeping me dry and staying nice enough to take straight out to dinner afterward.

I am excited to see how it does in warmer temps as a way to keep the sun off my arms on really long days out on the trail. I have high hopes!

I wash it cold and make sure to give it a little stretch (wet blocking your wool is always a good idea) before laying out on the drying rack and it has not shrunk on me.

I really love that these are made in US and I love supporting a company local to Salt Lake!


True to size. Love the material