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20 Best Thermals For Kids (2022 Updated)

Thermals are special types of clothing that help people stay warm in cold weather. They are often made of a material called wool, which is very good at trapping heat. Thermals usually come in the form of long underwear, which people wear under their regular clothes.

20 Best Thermals For Kids

Product Image Product Name Features Price

Burton Kids Fleece Base Layer Set

  • M

Terramar Kid's Thermolator 2.0 Crew

  • S

Rhino Childrens Big Boys Long Sleeve Thermal Underwear Base Layer Vest Top / SY-MY / Red

  • The turtleneck can be personalized with logo or text.
  • Rhino Logo to the rear of the turtleneck.
  • Keeps you warm and dry in cold conditions.

Mountain Warehouse Merino Kids Top – Warm Thermal Baselayer Grey 2T-3T

  • 2

Rhino Childrens Big Boys Long Sleeve Thermal Underwear Base Layer Vest Top / 5-6 / White

  • 6

Wedze Ski 500, Thermal Underwear Base Layer Top, Boys' in Black, Size 4 Years

  • 4

Mountain Warehouse | Merino Kids Base Layer Thermal Pants – Blue | Size 9-10

  • Very warm high quality wool which is naturally antibacterial properties to keep you fresher for longerHigh wicking
  • Actively wicks moisture away from the skin, keeping you dry and comfortableLightweight

Burton Kids' Fleece Base Layer Set

  • M

Polarmax Youth Double Base Layer Crew

  • XS

New Balance Kids' Youth Thermal Half Zip

  • L

Celavi – Kids – Thermal Set – Baselayer Sets | Grey

  • 4

Lands' End Boys Thermal Base Layer Long Underwear Thermaskin Crew Neck Shirt, Boy's, Size: Kids Large, Black

  • L

Reima Kids' Lani Thermal Set – 10 Y – Soft Navy

  • 10

The North Face Teen Waffle Baselayer Set Lavender Fog MD

  • M

Reima Kids Taitoa Thermal Set Navy

  • 130

Kids' Wicked Warm Long Underwear, Expedition-Weight Top Black S 4, Synthetic | L.L.Bean

  • S

Reima Kids Taitoa Thermal Set Deep Purple

  • 11-12

Old Navy Kids' Long-Sleeve Thermal-Knit T-Shirt – Brown – Size XXL

  • XXL
Burton Kids Fleece Base Layer Set
  • M
Terramar Kid's Thermolator 2.0 Crew
  • S
Rhino Childrens Big Boys Long Sleeve Thermal Underwear Base Layer Vest Top / SY-MY / Red
  • The turtleneck can be personalized with logo or text.
  • Rhino Logo to the rear of the turtleneck.
  • Keeps you warm and dry in cold conditions.
Mountain Warehouse Merino Kids Top – Warm Thermal Baselayer Grey 2T-3T
  • 2
Rhino Childrens Big Boys Long Sleeve Thermal Underwear Base Layer Vest Top / 5-6 / White
  • 6
Wedze Ski 500, Thermal Underwear Base Layer Top, Boys' in Black, Size 4 Years
  • 4
Mountain Warehouse | Merino Kids Base Layer Thermal Pants – Blue | Size 9-10
  • Very warm high quality wool which is naturally antibacterial properties to keep you fresher for longerHigh wicking
  • Actively wicks moisture away from the skin, keeping you dry and comfortableLightweight
Burton Kids' Fleece Base Layer Set
  • M
Polarmax Youth Double Base Layer Crew
  • XS
New Balance Kids' Youth Thermal Half Zip
  • L
Celavi – Kids – Thermal Set – Baselayer Sets | Grey
  • 4
Lands' End Boys Thermal Base Layer Long Underwear Thermaskin Crew Neck Shirt, Boy's, Size: Kids Large, Black
  • L
Reima Kids' Lani Thermal Set – 10 Y – Soft Navy
  • 10
The North Face Teen Waffle Baselayer Set Lavender Fog MD
  • M
Reima Kids Taitoa Thermal Set Navy
  • 130
Kids' Wicked Warm Long Underwear, Expedition-Weight Top Black S 4, Synthetic | L.L.Bean
  • S
Reima Kids Taitoa Thermal Set Deep Purple
  • 11-12
Old Navy Kids' Long-Sleeve Thermal-Knit T-Shirt – Brown – Size XXL
  • XXL

1. Burton Kids Fleece Base Layer Set

Burton Kids Fleece Base Layer Set

  • M

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Amazon.com
Buckman’s Ski and Snowboard Shop

Product Details

Specifications

Details
Primary Fabric Polyester
Rise Mid
Sustainability B Corp
Fabric Details 96 % Polyester, 4 % Spandex
Fit Type Regular Fit

Reviews From Real Customers

Katherine
Terri
brad

2. Terramar Kid’s Thermolator 2.0 Crew

Terramar Kid's Thermolator 2.0 Crew

  • S

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Amazon.com
Campmor
evo.com
Outdoor Gear Exchange

Product Details

Specifications

Details
Year F2022
Intended Use Baselayer
Properties Insulating, Quick Drying, Wicking

Reviews From Real Customers

kjIce
Katy

3. Rhino Childrens Big Boys Long Sleeve Thermal Underwear Base Layer Vest Top / SY-MY / Red

Rhino Childrens Big Boys Long Sleeve Thermal Underwear Base Layer Vest Top / SY-MY / Red

  • The turtleneck can be personalized with logo or text.
  • Rhino Logo to the rear of the turtleneck.
  • Keeps you warm and dry in cold conditions.
  • Fabric is lightweight, soft, easycare and dries quickly.

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Sold By Price
Amazon
eBay – pertemba
Universal Textiles US

Product Details

Reviews From Real Customers

Sue G
josim29
jamah-46

4. Mountain Warehouse Merino Kids Top – Warm Thermal Baselayer Grey 2T-3T

Mountain Warehouse Merino Kids Top - Warm Thermal Baselayer Grey 2T-3T

  • 2

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Amazon
Mountain Warehouse

Product Details

Reviews From Real Customers

2116.figaro
Maria Filippou
kallesuomi

5. Rhino Childrens Big Boys Long Sleeve Thermal Underwear Base Layer Vest Top / 5-6 / White

Rhino Childrens Big Boys Long Sleeve Thermal Underwear Base Layer Vest Top / 5-6 / White

  • 6

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Amazon
eBay – universaltextiles-online
fruugo.com
Universal Textiles US

Product Details

Reviews From Real Customers

Mr g.m.

6. Wedze Ski 500, Thermal Underwear Base Layer Top, Boys’ in Black, Size 4 Years

Wedze Ski 500, Thermal Underwear Base Layer Top, Boys' in Black, Size 4 Years

  • 4

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Amazon
decathlon.com

Product Details

Specifications

Details
Warmth Average: Brushed polyester component.
Storage instructions Dry thoroughly before storing.

Reviews From Real Customers

Jieun
Reema
ambuja

7. Mountain Warehouse | Merino Kids Base Layer Thermal Pants – Blue | Size 9-10

Mountain Warehouse | Merino Kids Base Layer Thermal Pants - Blue | Size 9-10

  • Very warm high quality wool which is naturally antibacterial properties to keep you fresher for longerHigh wicking
  • Actively wicks moisture away from the skin, keeping you dry and comfortableLightweight
  • comfortable to wear and ideal for active useBreathable
  • The fabric allows perspiration to pass out of the garment, keeping you cool and comfortable

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Amazon
SportsRidge.com

Product Details

Specifications

Details
Product Dimensions 0.39 x 0.39 x 0.39 inches

8. Burton Kids’ Fleece Base Layer Set

Burton Kids' Fleece Base Layer Set

  • M

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Amazon
REI
evo.com
Burton Snowboards

Product Details

Specifications

Details
Shirt Type T-shirt
Moisture Wicking Yes
Quick Drying Yes
Underwear Weight Midweight
Sleeve Length Long Sleeve

Reviews From Real Customers

Danica F.
Sherry H.

9. Polarmax Youth Double Base Layer Crew

Polarmax Youth Double Base Layer Crew

  • XS

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Amazon
High Mountain Sports
Aspen Ski and Board
Mountain Sports

Product Details

Specifications

Details
Style 2C61A

Reviews From Real Customers

TJ26
HollyC
noneofyourbusiness

10. New Balance Kids’ Youth Thermal Half Zip

New Balance Kids' Youth Thermal Half Zip

  • L

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Amazon
New Balance
Soccer Plus
Soccer.com

Product Details

Reviews From Real Customers

RichGG
Christian
jrm

11. Celavi – Kids – Thermal Set – Baselayer Sets | Grey

Celavi - Kids - Thermal Set - Baselayer Sets | Grey

  • 4

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Amazon
Luksusbaby.com

Product Details

Reviews From Real Customers

Nila D. L.
Mette
Kimmie J.

12. Lands’ End Boys Thermal Base Layer Long Underwear Thermaskin Crew Neck Shirt, Boy’s, Size: Kids Large, Black

Lands' End Boys Thermal Base Layer Long Underwear Thermaskin Crew Neck Shirt, Boy's, Size: Kids Large, Black

  • L

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Walmart – Lands End
Lands’ End
Kohl’s

Product Details

Reviews From Real Customers

Sahar
lyle
Sef2107

13. Reima Kids’ Lani Thermal Set – 10 Y – Soft Navy

Reima Kids' Lani Thermal Set - 10 Y - Soft Navy

  • 10

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Reima USA
Moosejaw
babyshop.com

Product Details

Specifications

Details
Soft, flat seams for extra comfort no chafing
Rise High
Primary Fabric Polyester
Fabric Weight 6.1 oz / Square Yard
Fit Type Regular Fit

Reviews From Real Customers

Ryan A
SHANNON G.
Susan K.

14. Girls – Pink Thermolite Base Layer Set – Size: 8/10 (8-10Y) – H&M

Girls - Pink Thermolite Base Layer Set - Size: 8/10 (8-10Y) - H&M

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H&M

Product Details

Specifications

Details
Pieces/Pairs 2
Sports activity Outdoor
Imported Yes

Reviews From Real Customers

Janine
Najmah
Zuzana

15. The North Face Teen Waffle Baselayer Set Lavender Fog MD

The North Face Teen Waffle Baselayer Set Lavender Fog MD

  • M

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The North Face
Nordstrom
evo.com
Good Sports Outdoor Outfitters

Product Details

Specifications

Details
Length 29 in
Waist Measurement 30 in
Outseam 42 in
Inseam 31 in
Front Rise 12 in

Reviews From Real Customers

Marc B.
Sara P.
Shawn O.

16. Reima Kids Taitoa Thermal Set Navy

Reima Kids Taitoa Thermal Set Navy

  • 130

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evo.com
eXXpozed.com
Reima USA

Product Details

Specifications

Details
Material characteristics elastic, insulated
Material outer fabric 43% Rayon, 48% Wool (Merino), 9% Polyamid
Outer fabric Merino Wool, Viscose

Reviews From Real Customers

Kristie H.
Jonas H.
ELIZABETH S.

17. Rei Co-op Merino Midweight Base Layer Top Gray Xxs (4-5) Kids

Rei Co-op Merino Midweight Base Layer Top Gray Xxs (4-5) Kids

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REI

Product Details

Specifications

Details
Shirt Type T-shirt
Sun-Protective Fabric Yes
UPF Rating 30
Moisture Wicking Yes
Quick Drying Yes

Reviews From Real Customers

cvan
A mom who tries
Aimee

18. Kids’ Wicked Warm Long Underwear, Expedition-Weight Top Black S 4, Synthetic | L.L.Bean

Kids' Wicked Warm Long Underwear, Expedition-Weight Top Black S 4, Synthetic | L.L.Bean

  • S

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L.L.Bean

Product Details

Reviews From Real Customers

Konstantin
Katelin
Ice Fishing Family

19. Reima Kids Taitoa Thermal Set Deep Purple

Reima Kids Taitoa Thermal Set Deep Purple

  • 11-12

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Reima USA
evo.com
Zappos.com

Product Details

Specifications

Details
Material characteristics elastic, insulated
Material outer fabric 43% Rayon, 48% Wool (Merino), 9% Polyamid
Outer fabric Merino Wool, Viscose

Reviews From Real Customers

HUIYUAN J.
Michelle C.

20. Old Navy Kids’ Long-Sleeve Thermal-Knit T-Shirt – Brown – Size XXL

Old Navy Kids' Long-Sleeve Thermal-Knit T-Shirt - Brown - Size XXL

  • XXL

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Old Navy

Product Details

Specifications

Details
Variants Regular Husky

Reviews From Real Customers

Karen M.

Conclusion

Thermals are a type of energy that is created when the sun heats up the earth’s surface. The earth’s surface then heats up the air above it, which causes the air to rise. The rising air then creates a thermal, which is a column of warm air.

Thermals can be used to help people fly airplanes and gliders.

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