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


Size Guide

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 22 reviews
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!

Leon H. (Hurleyville, US)
Perfect fit

I just received the order this afternoon. I immediately tried on the long sleeve baselayer to get a feel for the fit and finish. Perfect, the size is just right the feel is soft and comfortable, finish is flawless. I also ordered a short sleeve baselayer that is also perfect. I anticipate many enjoyable cycling rides, very soon, as I incorporate these two items into my routine. Thank you for these excellent products.

Joan J.
Warm and comfortable

Warm and comfortable it’s a favorite

Mark W. (Watkinsville, US)
Great fit

Very comfortable and keeps we warm