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Thermal Underwear Set for Kids - Thermals Top and Bottom Boys Long Underwear Base Layer Pajamas

Free shipping on orders over $29.99

$17.99

$ 7 .99 $7.99

In Stock

Product details

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

About this item

  • YOUTH THERMAL BASE LAYER SET: Slip on your Kickoff kids thermal set for top-to-bottom coziness. This snug thermal shirt and pants for boys set is thin and lightweight, and layers effortlessly – offering exceptional warmth, without the bulk.
  • FROM RECREATION TO RELAXATION: Whether you’re kicking into high gear, or winding down after a long day, a snug pair of Kickoffs will take you wherever you need to go.
  • MOISTURE-WICKING AND BREATHABLE: Wear your boys thermal set from morning till night without breaking a sweat. Our polyester blend offers moisture-wicking technology designed to keep you comfortable and dry during outdoor adventures and active pursuits.
  • QUALITY DESIGN THERMALS FOR KIDS: Our kids thermal underwear, is crafted from fade-resistant fabric with top-quality stitching, your thermals are designed to stay vibrant, soft, and pill-free wash after wash.
  • MACHINE WASH: Caring for your Kickoff long johns thermal set couldn’t be easier. Simply wash on a delicate cycle, and enjoy for years to come.



Product Description

Boys main

Layers for Life. From playground to pillow fort and everything in between, our buttery soft, mock merino thermals are designed to transition effortlessly from recreation to relaxation.

Boy

Cool Kids Stay Cozy

From snuggly sleep to indoor play and outdoor adventures, they'll be warm, dry, and ready for anything. (And they'll never want to take these off).

Fabric

Single, Soft Layer

Our lightweight thermals are gently brushed and woven from a single layer of mock merino for cloud-like softness. (90% polyester, 10% spandex.)

Play

Flexible

Kickoff thermals are stretchy and snug, so you’re guaranteed no sagging or bunching - ever.

Tagless

Tagless

Your little one will love the smooth seamless feel of these thermals- no itchy tags here!

Chart
Party
Swing

Dmytro Myakushko
Reviewed in the United States on March 5, 2025
Very warm and cozy
Natasha
Reviewed in the United States on March 4, 2025
came in handy for the 2 days of endless snow here in Louisiana kept my little guy warm while we experienced a once in a lifetime event
Customer
Reviewed in the United States on March 3, 2025
Super soft and fits great
Meredith Pope
Reviewed in the United States on February 7, 2025
My son wouldn't take off so comfortable
Mrs R
Reviewed in the United States on February 4, 2025
Soft fabric, fits well, keeps my child warm and washes well. I highly recommend!
J Fitz
Reviewed in the United States on February 27, 2025
My 6yo LOVES these. He put them on and doesn't want to take them off. He doesn't wear pajamas to bed, but, since getting these, he's worn them thru the night. Ended up with two pairs and may have to get a third. Also got some forthe adults!
Madge
Reviewed in the United States on January 19, 2025
These are so incredibly soft and supple. They’ve held up nice in the wash and seem to get softer with every wash. They appear well-made and are super warm. They layer very nicely under clothes. The sizing is just right. My little one wants to wear them all the time!
Customer
Reviewed in the United States on December 24, 2024
Very soft. My son loves them.