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Intraknit™ All-Season Merino Base Layer Bottoms

Smartwool

Current Price $125.00
Color
Color: Black
The brand says this runs true to size.
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Details & care

Minimal seaming and a contour-hugging fit bring distraction-free comfort to layerable tights made with breathable merino wool and silky-soft lyocell to manage moisture and body temperature when your intensity heats up. The signature Intraknit fabric moves easily while it provides the insulation and ventilation you need to stay active in any weather.

  • Elastic waist
  • Moisture-managing fabric engineered for dryness and comfort
  • 58% merino wool, 19% Tencel™ lyocell, 14% polyester, 6% nylon, 3% elastane
  • Merino wool naturally resists odors and helps regulate body temperature for comfort
  • Tencel lyocell is a more-sustainably produced fiber made with closed-loop processing
  • Machine wash, dry flat
  • Imported
  • Item #11441301
  • Core Product ID 33333B74BD

Size info

  • The brand says this runs true to size.
  • Waist sizing; S=29-31", M=32-34", L=35-37", XL=38-40", XXL=41-44".
  • Get the fit you want. Book an appointment with our onsite experts or stop by your nearest store.

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Smartwool

Smartwool was launched in 1994 in Steamboat Springs, Colorado, and initially specialized in performance socks made of Merino wool. Today the company continues to push the boundaries of Merino to create smarter, more capable outdoor apparel from head to toe. Built on the desire to be comfortable outside, Smartwool exists to help people play, live and laugh in the great outdoors.

Reviews

(4)45.0 out of 5
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Oct 31, 2026

Keeping Warm While Working

Working as a snowboard instructor I have to stay warm, as I might me outdoors for 3 to 4 hours while working. I have several pairs of these, and adding another pair , as to help having a clean pair available.
Reposted from Smartwool
Mark D.
May 29, 2026

For those looking for the in between

Great fit and comfortable! I’m usually not one for the intraknit, but this provides light weight warmth whiles still have the movement in my legs I need for colder hikes. Usually just go for the 3/4s or regular merino pants, but this is a great compromise for the in between
Reposted from Smartwool
Thomas J.
Mar 20, 2026

New Go-To Baselayer Bottoms

Super solid, no frills, reliable merino base layer from the ever-consistent smartwool. Wore these 5 days skiing/boarding in a row on a trip to steamboat without washing. No smell, dried quickly, stayed warm all week. Would highly recommend! Smartwool sent me a pair of these to try, and I love them!
Reposted from Smartwool
Terrence
Mar 19, 2026

Breathable and warm!

These really shined on some cold night hikes, but I even found myself wearing them under my uniform during nights on patrol.
Reposted from Smartwool
JENNIFER W.

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