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Kids Thermal Underwear

(22 products)

Products (22)

Sort: Best Match

Sale Ends Dec 8
Top Rated
REI Co-opMerino Midweight Base Layer Crew Top - Kids'
$34.89
Save 30%
compared to $49.95
28 reviews with an average rating of 4.7 out of 5 stars
Sale Ends Dec 8
Top Rated
REI Co-opMerino Midweight Base Layer Bottoms - Kids'
$34.89
Save 30%
compared to $49.95
16 reviews with an average rating of 4.6 out of 5 stars
Top Rated
REI Co-opMidweight Base Layer Bottoms - Kids'
$34.95
8 reviews with an average rating of 4.6 out of 5 stars
BurtonFleece Base Layer Set - Kids'
$69.95
2 reviews with an average rating of 5.0 out of 5 stars
The North FaceDotKnit Thermal Base Layer Set - Toddlers'
$70.00
0 reviews
SmartwoolClassic Thermal Merino Base Layer Bottoms - Kids'
$65.00
0 reviews
Hot ChillysOriginals Solid Base Layer Pants - Kids'
$34.73
Save 26%
compared to $47.50
0 reviews
REI OUTLET
Top Rated
SmartwoolClassic Thermal Merino Crew Base Layer Top - Kids'
$65.00
80 reviews with an average rating of 4.8 out of 5 stars
SmartwoolClassic Thermal Merino Crew Base Layer Top - Kids'
$65.00
5 reviews with an average rating of 3.6 out of 5 stars
Sale Ends Dec 8
Top Rated
Icebreaker260 Tech Thermal Base Layer Leggings - Kids'
$52.49
Save 25%
compared to $70.00
8 reviews with an average rating of 5.0 out of 5 stars
Top Rated
SmartwoolClassic Thermal Merino Base Layer Bottoms - Kids'
$46.73
Save 28%
compared to $65.00
52 reviews with an average rating of 4.7 out of 5 stars
REI OUTLET
Top Rated
SmartwoolClassic Thermal Merino Base Layer Bottoms - Kids'
$65.00
71 reviews with an average rating of 4.7 out of 5 stars
The North FaceDotKnit Thermal Base Layer Set - Kids'
$80.00
7 reviews with an average rating of 3.7 out of 5 stars
Deux par DeuxThermal Underwear Base Layer Set - Toddlers'
$72.00
0 reviews
Deux par DeuxThermal Underwear Base Layer Set - Kids'
$72.00
0 reviews
SmartwoolClassic Thermal Merino Base Layer Quarter-Zip Top - Kids'
$70.00
0 reviews
SmartwoolClassic Thermal Merino Base Layer Quarter-Zip - Kids'
$51.73
Save 26%
compared to $70.00
0 reviews
REI OUTLET
SmartwoolClassic Thermal Merino Crew Base Layer Top - Kids'
$46.73
Save 28%
compared to $65.00
5 reviews with an average rating of 3.6 out of 5 stars
REI OUTLET
Top Rated
ColumbiaMidweight Tights 2 - Kids'
$30.00
61 reviews with an average rating of 4.8 out of 5 stars
BurtonFleece Base Layer Set - Toddlers'
$64.95
0 reviews
BurtonFleece Base Layer Set - Toddlers'
$64.95
0 reviews
Top Rated
ColumbiaOmni-Heat Midweight Crew Base Layer Top - Kids'
$30.00
73 reviews with an average rating of 4.8 out of 5 stars

Sort: Best Match

Related Expert Advice articles

What material is best?

Wool is moisture-wicking and odor-resistant, while synthetic fabrics are more durable and less expensive.

Match the temp to the trek

Lightweight layers are best for moderate to cool temperatures. Midweight layers are best for cold temperatures. Heavyweight layers are best for below-freezing temperatures.

Find your fit

To be able to wick sweat efficiently, your next-to-skin layer needs to actually be next to your skin. A comfortably snug fit everywhere is your goal.

Read full article: How to Choose Base Layers

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