Men's Nuyarn® Merino Wool Tech Baselayer Long Sleeve 2.0

Size Guide
Best Used For:

Skiing. Riding. Hiking. Camping. Running. Hunting. Outdoors. Snowmobiling

Cover all your bases with the Wūru® 7/8 Merino Wool Tech Baselayer Pant,  Made in the USA and now featuring Nuyarn®. Designed to be tight next to the skin layer following your every move.  Wūru® sources only premium NZ and AUS Merino wool to ensure that soft next to skin feel. 

Nuyarn® offers a proprietary spinning technology that releases the natural performance characteristics of wool like no other. Making the once impossible, possible.  

The World’s First Performance Wool - Technology you can feel!


Product Weight Medium: TBD

Fabric: 90% Merino, 10% Nylon

Fabric Weight: 145gsm (Equivalent warmth: 195gsm ringspun fabric)

Knit in Vietnam: 17.5 Micron - 145gsm

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
  • Strategically placed thumbhole for enhanced movement
  • Flatlock seams to eliminate chafing  
  • 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.


Maintain Your Merino

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 25 reviews
P.R. (Salt Lake City, US)

Excellent I would not go hiking or hunting without wearing them!

Steve S. (Salt Lake City, US)
5 Day Elk Hunt

I just got back from a 5day elk hunt in Colorado at 10,000+ feet elevation. I wore your long sleeve top and briefs during the hunt. The top was wore all 5 days and switched out the briefs after 2 days. All I can say is thank you for making an amazing product. I was very impressed!

Steve S. (Fallbrook, US)
Fantastic fit and quality

This is a great fitting base layer and I am very excited to have it for my backcountry hunt! I appreciate that it is made in the USA. I have stopped buying products that are made overseas and happy to support a company that supports USA jobs!!!

Ralph S. (Salt Lake City, US)

It fits perfectly and it looks like a great product. I like that it is slightly longer in the back to stay tucked in, the thumb holes are my major prerequisite and hard to find, the color is perfect. I’m sure I will be ordering more of your products. I have a lot of merino base layers and I have a feeling this is going to be my new favorite.

Brenden K. (Minneapolis, US)
Love the brand. Will be a supporter for life.

The base layer 2.0 line is amazing for working out in -30 windchills for 4+ hours a shift. Super comfy, I don’t want to take them off. Thanks Würu!