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Kids Thermal Underwear

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Products (47)

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Top Rated
REI Co-op
Midweight Long Underwear Bottoms - Kids'
$29.95
10 reviews with an average rating of 4.7 out of 5 stars
Top Rated
REI Co-op
Midweight Crew Long Underwear Top - Kids'
$29.95
27 reviews with an average rating of 4.9 out of 5 stars
REI Co-op
Merino Midweight Base Layer Bottoms - Kids'
$49.95
1 reviews with an average rating of 5.0 out of 5 stars
REI Co-op
Midweight Long Underwear Bottoms - Toddlers'
$19.95
7 reviews with an average rating of 3.6 out of 5 stars
REI Co-op
Midweight Crew Long Underwear Top - Toddlers'
$19.95
9 reviews with an average rating of 4.3 out of 5 stars
Top Rated
REI Co-op
Merino Midweight Base Layer Top - Kids'
$49.95
8 reviews with an average rating of 5.0 out of 5 stars
REI Co-op
Merino Midweight Half-Zip Base Layer Top - Kids'
$54.95
0 reviews
REI Outlet
Terramar
Thermolator Crew Base Layer Top - Toddlers'
$16.73 Compared to$25.00
You save 33%
2 reviews with an average rating of 4.5 out of 5 stars
Top Rated
Terramar
Thermolator 2 Base Layer Bottoms - Kids'
$35.00
7 reviews with an average rating of 4.7 out of 5 stars
REI Outlet
Odlo
Royale Half-Zip Mid Layer Top - Kids'
$29.73 Compared to$40.00
You save 25%
0 reviews
REI Outlet
Odlo
Active X-Warm Base Layer Pants - Kids'
$41.73 Compared to$55.00
You save 24%
0 reviews
REI Outlet
Odlo
Active Warm Trend Long-Sleeve Base Layer Top - Kids'
$29.73 Compared to$40.00
You save 25%
0 reviews
REI Outlet
Odlo
Active Warm Eco Base Layer Set - Toddlers'/Kids'
$59.73 Compared to$80.00
You save 25%
0 reviews
REI Outlet
Reima
Oloisa All-in-One Base Layer Union Suit - Infants'/Toddlers'
$33.73 Compared to$45.00
You save 25%
0 reviews
REI Outlet
Odlo
Active Warm Eco Long-Sleeve Half-Zip Turtleneck Top - Kids'
$33.73 Compared to$45.00
You save 25%
0 reviews
REI Outlet
Obermeyer
Courtnay Base Layer Leggings - Girls'
$44.73 Compared to$59.50
You save 24%
0 reviews
Top Rated
REI Co-op
Merino Midweight Half-Zip Base Layer Top - Kids'
$54.95
14 reviews with an average rating of 4.8 out of 5 stars
Patagonia
Capilene Midweight Base Layer Bottoms - Kids'
$35.00
2 reviews with an average rating of 1.0 out of 5 stars
REI Outlet
Threads 4 Thought
Base Layer Set - Toddlers'
$46.73 Compared to$70.00
You save 33%
0 reviews
REI Outlet
Threads 4 Thought
Base Layer Set - Kids'
$49.73 Compared to$75.00
You save 33%
1 reviews with an average rating of 1.0 out of 5 stars
REI Outlet
Obermeyer
Transport Quarter-Zip Base Layer Top - Boys'
$52.73 Compared to$69.50
You save 24%
0 reviews
REI Co-op
Merino Midweight Base Layer Bottoms - Kids'
$49.95
23 reviews with an average rating of 3.9 out of 5 stars
Top Rated
REI Co-op
Midweight Half-Zip Long Underwear Top - Kids'
$34.95
8 reviews with an average rating of 4.9 out of 5 stars
REI Outlet
Obermeyer
Clara Quarter-Zip Base Layer Top - Girls'
$52.73 Compared to$69.50
You save 24%
0 reviews
Patagonia
Capilene Midweight Crew Base Layer Top - Kids'
$35.00
0 reviews
REI Outlet
Reima
Lani Base Layer Set - Toddlers'/Kids'
$41.73 Compared to$55.00
You save 24%
0 reviews
REI Outlet
Reima
Taitoa Base Layer Set - Toddlers'/Kids'
$56.73 Compared to$75.00
You save 24%
0 reviews
Top Rated
Terramar
Thermolator 2 Crew Base Layer Top - Kids'
$35.00
16 reviews with an average rating of 4.8 out of 5 stars
Top Rated
Smartwool
Merino 250 Base Layer Bottoms - Kids'
$60.00
8 reviews with an average rating of 4.9 out of 5 stars
Top Rated
Smartwool
Merino 250 Base Layer Crew - Kids'
$60.00
19 reviews with an average rating of 4.8 out of 5 stars

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Kids Thermal Underwear

REI Co-op
Midweight Long Underwear Bottoms - Kids'

REI Co-op
Midweight Crew Long Underwear Top - Kids'

REI Co-op
Merino Midweight Base Layer Bottoms - Kids'

REI Co-op
Midweight Long Underwear Bottoms - Toddlers'

REI Co-op
Midweight Crew Long Underwear Top - Toddlers'

REI Co-op
Merino Midweight Base Layer Top - Kids'

REI Co-op
Merino Midweight Half-Zip Base Layer Top - Kids'

Terramar
Thermolator Crew Base Layer Top - Toddlers'

Terramar
Thermolator 2 Base Layer Bottoms - Kids'

Odlo
Royale Half-Zip Mid Layer Top - Kids'

Odlo
Active X-Warm Base Layer Pants - Kids'

Odlo
Active Warm Trend Long-Sleeve Base Layer Top - Kids'

Odlo
Active Warm Eco Base Layer Set - Toddlers'/Kids'

Reima
Oloisa All-in-One Base Layer Union Suit - Infants'/Toddlers'

Odlo
Active Warm Eco Long-Sleeve Half-Zip Turtleneck Top - Kids'

Obermeyer
Courtnay Base Layer Leggings - Girls'

REI Co-op
Merino Midweight Half-Zip Base Layer Top - Kids'

Patagonia
Capilene Midweight Base Layer Bottoms - Kids'

Threads 4 Thought
Base Layer Set - Toddlers'

Threads 4 Thought
Base Layer Set - Kids'

Obermeyer
Transport Quarter-Zip Base Layer Top - Boys'

REI Co-op
Merino Midweight Base Layer Bottoms - Kids'

REI Co-op
Midweight Half-Zip Long Underwear Top - Kids'

Obermeyer
Clara Quarter-Zip Base Layer Top - Girls'

Patagonia
Capilene Midweight Crew Base Layer Top - Kids'

Reima
Lani Base Layer Set - Toddlers'/Kids'

Reima
Taitoa Base Layer Set - Toddlers'/Kids'

Terramar
Thermolator 2 Crew Base Layer Top - Kids'

Smartwool
Merino 250 Base Layer Bottoms - Kids'

Smartwool
Merino 250 Base Layer Crew - Kids'

You can compare up to 4 items at a time.

Filter

REI Co-opMidweight Long Underwear Bottoms - Kids'

REI Co-opMidweight Crew Long Underwear Top - Kids'

REI Co-opMerino Midweight Base Layer Bottoms - Kids'

REI Co-opMidweight Long Underwear Bottoms - Toddlers'

REI Co-opMidweight Crew Long Underwear Top - Toddlers'

REI Co-opMerino Midweight Base Layer Top - Kids'

REI Co-opMerino Midweight Half-Zip Base Layer Top - Kids'

TerramarThermolator Crew Base Layer Top - Toddlers'

TerramarThermolator 2 Base Layer Bottoms - Kids'

OdloRoyale Half-Zip Mid Layer Top - Kids'

OdloActive X-Warm Base Layer Pants - Kids'

OdloActive Warm Trend Long-Sleeve Base Layer Top - Kids'

OdloActive Warm Eco Base Layer Set - Toddlers'/Kids'

ReimaOloisa All-in-One Base Layer Union Suit - Infants'/Toddlers'

OdloActive Warm Eco Long-Sleeve Half-Zip Turtleneck Top - Kids'

ObermeyerCourtnay Base Layer Leggings - Girls'

REI Co-opMerino Midweight Half-Zip Base Layer Top - Kids'

PatagoniaCapilene Midweight Base Layer Bottoms - Kids'

Threads 4 ThoughtBase Layer Set - Toddlers'

Threads 4 ThoughtBase Layer Set - Kids'

ObermeyerTransport Quarter-Zip Base Layer Top - Boys'

REI Co-opMerino Midweight Base Layer Bottoms - Kids'

REI Co-opMidweight Half-Zip Long Underwear Top - Kids'

ObermeyerClara Quarter-Zip Base Layer Top - Girls'

PatagoniaCapilene Midweight Crew Base Layer Top - Kids'

ReimaLani Base Layer Set - Toddlers'/Kids'

ReimaTaitoa Base Layer Set - Toddlers'/Kids'

TerramarThermolator 2 Crew Base Layer Top - Kids'

SmartwoolMerino 250 Base Layer Bottoms - Kids'

SmartwoolMerino 250 Base Layer Crew - Kids'

REI Co-op
Midweight Long Underwear Bottoms - Kids'

REI Co-op
Midweight Crew Long Underwear Top - Kids'

REI Co-op
Merino Midweight Base Layer Bottoms - Kids'

REI Co-op
Midweight Long Underwear Bottoms - Toddlers'

REI Co-op
Midweight Crew Long Underwear Top - Toddlers'

REI Co-op
Merino Midweight Base Layer Top - Kids'

REI Co-op
Merino Midweight Half-Zip Base Layer Top - Kids'

Terramar
Thermolator Crew Base Layer Top - Toddlers'

Terramar
Thermolator 2 Base Layer Bottoms - Kids'

Odlo
Royale Half-Zip Mid Layer Top - Kids'

Odlo
Active X-Warm Base Layer Pants - Kids'

Odlo
Active Warm Trend Long-Sleeve Base Layer Top - Kids'

Odlo
Active Warm Eco Base Layer Set - Toddlers'/Kids'

Reima
Oloisa All-in-One Base Layer Union Suit - Infants'/Toddlers'

Odlo
Active Warm Eco Long-Sleeve Half-Zip Turtleneck Top - Kids'

Obermeyer
Courtnay Base Layer Leggings - Girls'

REI Co-op
Merino Midweight Half-Zip Base Layer Top - Kids'

Patagonia
Capilene Midweight Base Layer Bottoms - Kids'

Threads 4 Thought
Base Layer Set - Toddlers'

Threads 4 Thought
Base Layer Set - Kids'

Obermeyer
Transport Quarter-Zip Base Layer Top - Boys'

REI Co-op
Merino Midweight Base Layer Bottoms - Kids'

REI Co-op
Midweight Half-Zip Long Underwear Top - Kids'

Obermeyer
Clara Quarter-Zip Base Layer Top - Girls'

Patagonia
Capilene Midweight Crew Base Layer Top - Kids'

Reima
Lani Base Layer Set - Toddlers'/Kids'

Reima
Taitoa Base Layer Set - Toddlers'/Kids'

Terramar
Thermolator 2 Crew Base Layer Top - Kids'

Smartwool
Merino 250 Base Layer Bottoms - Kids'

Smartwool
Merino 250 Base Layer Crew - Kids'