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Thermal Underwear for Kids Long Johns, Boys Thermal Underwear Set for Skiing, Base Layer Long Underwear Boy Winter

4.4 (8) Write Review
Free shipping on orders over $29.99

$24.99

$ 11 .99 $11.99

In Stock

Product details

  • Fabric type
    90% Polyester, 10% Spandex
  • Care instructions
    Machine Wash
  • Origin
    Imported

About this item

  • ESSENTIAL FOR COLD WEATHER: Kids don’t slow down when it’s cold—they just need the right gear. This thermal underwear for kids ​keeps them warm and comfortable while allowing for full movement. Perfect for outdoor play, it ensures your child stays cozy and active, no matter the temperature.
  • SUPERIOR HEAT RETENTION: These kids thermals top and bottom set are designed to keep kids warm and protected from the cold. Lined with soft fleece, they offer lightweight insulation that provides warmth without bulk, giving your child comfort and security all winter long.
  • FLEXIBLE FOUR-WAY STRETCH: Made with advanced four-way stretch fabric, these boys thermal underwear set offer ultimate flexibility. Running, jumping, twisting—your child moves freely without any pulling or bunching, ensuring all-day comfort and unrestricted mobility.
  • MOISTURE-WICKING & BREATHABLE: Our long johns for kids moisture-wicking technology draws sweat away from your child’s skin, keeping them dry and comfortable. The breathable fabric traps warmth while allowing airflow, balancing warmth, dryness, and breathability for maximum comfort.
  • THE BEST BASE LAYER FOR WINTER: These thermals for kids are the ideal base layer for winter activities. Lightweight yet warm, they can be worn alone or layered for extra warmth without the bulk. Perfect for sports, play, or school, they provide all-day comfort and flexibility.


Product Description

thermal kid
thermal underwear boy
long underwear boy
long underwear kid
base layer kid
base layer boy

Julie Moore
Reviewed in the United States on January 9, 2025
They were so warm my grandsons won’t wear them because they keep them to warm. Lol
Alyssa Vazquez
Reviewed in the United States on January 5, 2025
Bought this for my 3 year old for our vacation in Colorado. Fit great and kept him warm inside and underneath his winter clothes to play outside in the snow.
Customer
Reviewed in the United States on January 23, 2025
These are so nice and warm. My son has worn them a few times now outside under his clothes and it’s been about 9 degrees where we are. He tells me he’s warm while he’s wearing them. They are very soft and not itchy at all, and they fit well under other clothes. He sometimes just wears them around the house because he likes the feel. I’m very happy with how they keep him warm and the fit as well.
elnaz rahbar
Reviewed in the United States on July 6, 2024
I got this set for my 5 year old son to wear under his ski suit, they were great! Kept him warm and the good thing is a tiny opening at the front of the pants , my son could go to bathroom without taking off the ski suit!
Angelita Gonzales
Reviewed in the United States on March 4, 2024
Very soft and comfortable my son loves it
Zuley Reyes
Reviewed in the United States on February 25, 2024
Perfecto
Sunshine Curls
Reviewed in the United States on December 26, 2024
This did not shrink in the washer, has not torn and has been pretty warm. Pretty great quality and so far it’s helped tons!
Sandra S.
Reviewed in the United States on January 28, 2024
My grandson loves these thermals. He wants to wear them all the time. Soft and comfortable. Better than I expected. Thumbs up!!