Shop
  • Deals
  • Deal checker
  • Black Friday
  • Buying guides
  • Brands
  • Stores
Travel
  • Flight deals
  • Hotel deals
Company
  • Research
  • Press
  • deal.ai apps
Black Friday 2026
  • Walmart
  • Best Buy
  • Target
  • TVs
  • Laptops
  • Headphones
  • Apple
  • Gaming
  • Vacuums
  • Kitchen
  • Toys
  • Smartwatches
  • Tablets
  • Furniture
  • Mattresses
© Deal.ai Inc.
TermsPrivacy
Deal.ai › Smartwool › Base Layer Pants
Smartwool
Smartwool Men's Intraknit Thermal Merino Base Layer Bottom

Smartwool Men's Intraknit Thermal Merino Base Layer Bottom

Best price now

$150.00at ZapposChecked 1 h ago

Compared across 2 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. Price via Klarna.

Visit Zappos

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Enter to send, Shift+Enter for a new line

Price facts

  • Lowest price today: $150.00 at Zappos (checked Nov 10, 2026).
  • Checked at 2 stores.

Our take on the Smartwool Men's Intraknit Thermal Merino Base Layer Bottom

The Smartwool Intraknit Thermal Merino Base Layer Bottom is a heavyweight, slim-fit legging for cold-weather aerobic activity. Its Intraknit construction knits merino, polyester and elastane into one piece, placing mesh ventilation where the body heats up and leaving fewer seams to rub. The merino blend resists odor and manages moisture better than plain synthetic tights, though the slim cut and heavyweight fabric feel warmer and closer than lighter merino bottoms. Reviewers generally rate it highly for ski touring, winter running and cold hikes, and criticize its slim sizing and long-term durability at the knit's thin zones.

Best forSki touring and winter aerobic sportsCold-weather running and hikingShoppers wanting odor-resistant merino instead of full syntheticLayering under shell pants in freezing conditions
Pros
  • Merino-rich blend resists odor across multi-day use
  • Intraknit mesh zones vent heat without extra seams
  • Heavyweight warmth for freezing conditions
  • Slim fit layers cleanly under shell pants
  • Elastane gives stretch for movement-heavy activity
Cons
  • Slim fit runs close; size up if between sizes
  • Heavyweight fabric can feel too warm for high output
  • Merino blend needs careful washing and air drying
  • Thin knit zones may wear faster than solid fabric

Smartwool Men's Intraknit Thermal Merino Base Layer Bottom prices at every store

  • ZapposNew

    In stock

    $150.00Free shippingChecked 1 h ago
    Visit Zappos
  • SmartwoolNew

    In stock

    $150.00+ $5.00 shippingChecked 1 h ago
    Visit Smartwool

Store links may earn us a commission. Some prices via Klarna.

Smartwool Men's Intraknit Thermal Merino Base Layer Bottom price history

Lowest price we've seen: $150.00 on Nov 10 at Smartwool. Tracked across 2 stores since Nov 10.

What reviewers say

Owners praise the warmth, odor control and seamless feel for ski touring and winter running. Complaints center on the slim fit and on wear at the thinner knit areas after repeated use.

What people mention
  • WarmthPraisedOwners say it keeps legs warm in freezing conditions without feeling bulky under shells.
  • Odor controlPraisedReviewers report wearing it several days between washes without smell.
  • FitCriticisedThe slim fit feels tight through the thighs and seat for some buyers.
  • SeamsPraisedThe seamless Intraknit build is cited for reducing chafing on long days.
  • DurabilityMixedSome owners see pilling and thinning at the knit's lighter zones with repeated wear.

Specifications

Material composition
53% Merino Wool, 44% Polyester, 3% ElastaneSource
Weight class
HeavyweightSource
Fit
slim fitSource
Ventilation
Seamlessly knit mesh ventilationSource

Questions and answers

How warm is this base layer bottom?
It is Smartwool's heavyweight class, built for freezing and below. It suits ski touring and winter running but is too warm for mild days or high-output spring laps.
How does the slim fit run?
It sits close to the skin by design. If you are between sizes or prefer room, size up; the elastane gives stretch but the cut stays snug.
Is it better than a full synthetic tight?
The merino blend resists odor far better and feels less clammy when you sweat. Synthetic tights dry faster and cost less, so the choice comes down to multi-day freshness versus quick drying.
How should I wash it?
Use a wool-safe detergent on a cool gentle cycle and air dry. Skip fabric softener and high heat, which degrade the merino fibers.
What activities is it made for?
Smartwool labels it high aerobic, so ski touring, winter running and fast cold-weather hikes fit best. It also works as a static layer under shell pants on very cold days.
Does it have ventilation panels?
Yes. Mesh zones are knit directly into the fabric at heat-prone areas, so air moves without extra seams or panels.
Where is the Smartwool Men's Intraknit Thermal Merino Base Layer Bottom cheapest?
At Zappos, for $150.00, as of our latest check.
Where can I buy the Smartwool Men's Intraknit Thermal Merino Base Layer Bottom?
2 stores we checked sell it, including Smartwool, Zappos.

Shoppers also compared

  • M
    Men's Wool Thermal Top Midweight Base Layer
    Men's Wool Thermal Top Midweight Base Layer
  • M
    Midweight Men's Wool Bottom Thermal Base Layer - 100% Merino Wool
    Midweight Men's Wool Bottom Thermal Base Layer - 100% Merino Wool
  • S
    Smartwool Classic Thermal Merino 1/4 Zip
    Smartwool Classic Thermal Merino 1/4 Zip
  • O
    Ozark Trail Men's Lightweight Thermal Underwear Bottoms
    Ozark Trail Men's Lightweight Thermal Underwear Bottoms
  • B
    Bobcat Heavyweight Fleece-Lined Men's Thermal Underwear Base Layer Top & Bottoms
    Bobcat Heavyweight Fleece-Lined Men's Thermal Underwear Base Layer Top & Bottoms
  • D
    Darley Mens Thermal Base Layer Set - Black
    Darley Mens Thermal Base Layer Set - Black
  • R
    Realtree Men's Fleece Baselayer Pants
    Realtree Men's Fleece Baselayer Pants
  • S
    Supreme Hanes Bones Thermal Crew - Black
    Supreme Hanes Bones Thermal Crew - Black

Buying guides that pick the Smartwool Men's Intraknit Thermal Merino Base Layer Bottom

  • Best men's thermal base layers

Stores we've priced the Smartwool Men's Intraknit Thermal Merino Base Layer Bottom at

  • Zappos.com deals and prices

More from Smartwool

  • S
    Smartwool Men's Classic Thermal Merino Base Layer 3/4 Bottom
    Smartwool Men's Classic Thermal Merino Base Layer 3/4 Bottom
  • S
    Smartwool Classic Thermal Merino Base Layer Bottom Men's
    Smartwool Classic Thermal Merino Base Layer Bottom Men's
  • S
    Smartwool Men's Classic Thermal Merino Base Layer Colorblock Crew
    Smartwool Men's Classic Thermal Merino Base Layer Colorblock Crew
  • S
    Smartwool Everyday Anchor Line Crew
    Smartwool Everyday Anchor Line Crew
  • S
    Smartwool Men's Merino 250 Base Layer 1/4 Zip
    Smartwool Men's Merino 250 Base Layer 1/4 Zip
  • S
    Smartwool Hike Classic Edition Crew Socks
    Smartwool Hike Classic Edition Crew Socks
  • S
    Smartwool Active Ultralite Neck Gaiter
    Smartwool Active Ultralite Neck Gaiter
  • S
    Smartwool Women's Smartloft Hooded Insulated Jacket
    Smartwool Women's Smartloft Hooded Insulated Jacket
All Smartwool deals and products →
Knit technology
Intraknit™ technologySource
Country made
Made in IndiaSource
Activity
High AerobicSource
Fabric
Merino + Polyester BlendSource