

Hero image 0 of Arctic Hero Boys' Thermal Underwear - 4 Piece Waffle Knit Top and Long John Set (Size: 2-18), 0 of 7
Arctic Hero Boys' Thermal Underwear - 4 Piece Waffle Knit Top and Long John Set (Size: 2-18)
Arctic Hero Boys' Thermal Underwear - 4 Piece Waffle Knit Top and Long John Set (Size: 2-18)Arctic Hero Boys Thermal Underwear 4 Piece Waffle Knit Top and Long John Set Size 2 18Arctic Hero Boys Thermal Underwear 4 Piece Waffle Knit Top and Long John Set Size 2 18Arctic Hero Boys Thermal Underwear 4 Piece Waffle Knit Top and Long John Set Size 2 18Arctic Hero Boys Thermal Underwear 4 Piece Waffle Knit Top and Long John Set Size 2 18Arctic Hero Boys Thermal Underwear 4 Piece Waffle Knit Top and Long John Set Size 2 18Arctic Hero Boys Thermal Underwear 4 Piece Waffle Knit Top and Long John Set Size 2 18Arctic Hero Boys Thermal Underwear 4 Piece Waffle Knit Top and Long John Set Size 2 18Arctic Hero Boys Thermal Underwear 4 Piece Waffle Knit Top and Long John Set Size 2 18Arctic Hero Boys Thermal Underwear 4 Piece Waffle Knit Top and Long John Set Size 2 18Arctic Hero Boys Thermal Underwear 4 Piece Waffle Knit Top and Long John Set Size 2 18Arctic Hero Boys Thermal Underwear 4 Piece Waffle Knit Top and Long John Set Size 2 18Arctic Hero Boys Thermal Underwear 4 Piece Waffle Knit Top and Long John Set Size 2 18Arctic Hero Boys Thermal Underwear 4 Piece Waffle Knit Top and Long John Set Size 2 18Arctic Hero Boys Thermal Underwear 4 Piece Waffle Knit Top and Long John Set Size 2 18Arctic Hero Boys Thermal Underwear 4 Piece Waffle Knit Top and Long John Set Size 2 18Arctic Hero Boys Thermal Underwear 4 Piece Waffle Knit Top and Long John Set Size 2 18Arctic Hero Boys Thermal Underwear 4 Piece Waffle Knit Top and Long John Set Size 2 18Arctic Hero Boys Thermal Underwear 4 Piece Waffle Knit Top and Long John Set Size 2 18Arctic Hero Boys Thermal Underwear 4 Piece Waffle Knit Top and Long John Set Size 2 18Arctic Hero Boys Thermal Underwear 4 Piece Waffle Knit Top and Long John Set Size 2 18Arctic Hero Boys Thermal Underwear 4 Piece Waffle Knit Top and Long John Set Size 2 18Arctic Hero Boys Thermal Underwear 4 Piece Waffle Knit Top and Long John Set Size 2 18Arctic Hero Boys Thermal Underwear 4 Piece Waffle Knit Top and Long John Set Size 2 18Arctic Hero Boys Thermal Underwear 4 Piece Waffle Knit Top and Long John Set Size 2 18
Color:Navy/Charcoal-Out of stock
Black/Ecru, $19.98
$19.98
Grey/Royal, $12.98, was $22.99
$12.98$22.99
selected, Navy/Charcoal, $14.98, Out of stock
$14.98
Clothing Size:7-Out of stock
Key item features
- Warm Base Layer: This 4-piece boys' thermal underwear set, including a waffle knit top and long johns, provides all-day warmth as a reliable base layer for chilly days.
- Comfortable Stretch: The thermal shirts and matching waffle pants offer skin-friendly comfort with just the right amount of stretch, staying put and feeling soft throughout the day.
- Versatile Styling: The clean crewneck design allows for easy mix-and-match styling, suitable for layering under jackets or wearing solo, with a subtle waffle knit texture.
- Durable Easy-Care: Built to last, the waffle knit fabric resists pilling and shrinking through repeated washes, maintaining its shape and fresh look wear after wear.
- All-Season Wear: Designed for year-round use, this breathable yet insulating set adapts to changing climates, functioning as a thermal undershirt in winter or a solo top in transitional weather.
- Flexible Durability: This waffle-knit duo offers a balance of flexibility and durability, moving naturally through play and daily activities for toddlers and older children.
Generated by AI
Reviews summary
Pros
- : Provides warmth while allowing airflow.
- : Offers good value at this cost.
- : Allows comfortable layering in various settings.
Neutral
- : Can be thick and warm, but also thin and scratchy.
- : Can be sturdy, but also prone to inconsistencies.
Cons
- : May require sizing up for a comfortable fit.
Generated by AI
Current price is USD$14.98
Price when purchased online
Selected option out of stock
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About this item
Product details
Meet the boys' thermal set that keeps up with cold-weather energy and year-round adventure. Designed to feel soft, cozy, and easy to wear, this waffle-knit duo gives kids the dependable warmth they need without weighing them down. The top and pants work together as a simple everyday layer-great under uniforms, hoodies, or outdoor gear-while still comfortable enough to wear on their own when the temperature shifts. With a classic look that fits right into any boy's wardrobe, this set supports everything from school-day routines to weekend exploring. Built with a balance of flexibility and durability, it moves naturally through play, practice, and all the moments in between. Whether you're dressing a toddler or outfitting a fast-growing big kid, this thermal set brings all-season comfort that feels just right from morning to evening.
- Thermal Leggings All-Day Warmth: Keep your boy cozy during chilly days with this boys thermal underwear set designed as a reliable base layer kids love. Each thermal long sleeve and thermal pants combo features a waffle knit top that stays breathable. Whether layering under kids long sleeve shirts for boys or wearing solo, this waffle top delivers comfort and style that lasts.
- Thermal Shirt Comfort That Stretches: This boys thermal set includes a crewneck long sleeve shirt and matching waffle pants. The skin-friendly thermal shirts, thermal undershirt and waffle knit tops provide just the right amount of stretch. From sports practice to schoolyard play, these thermals for kids work as a dependable base layer that stays put and feels soft all day.
- Long Johns For Kids Mix And Match: Pair a thermal clothes, boys thermal shirt with jeans, or wear the thermal long sleeve top beneath jackets, sweaters, or boys long sleeve shirts size 8. The clean crewneck design makes it easy to coordinate, while the waffle knit adds subtle texture that stands out. These boys thermal long sleeve shirts, boys long sleeve shirts size 14-16 styles grow with their wardrobe needs.
- Waffle Knit Set Easy Care: These boys long sleeve shirts and thermal pants are built to last through repeated washes while holding their shape. The waffle knit fabric resists pilling and shrinking, each boys thermal long sleeve shirt looks fresh wear after wear. Designed as thermal wear, this thermal underwear for kids, kids thermal underwear set brings reliable warmth that won't fade.
- Toddler Thermal Set Every Season: This boys thermal underwear set is built for year-round use. Use the boys thermal shirt as a thermal undershirt under hoodies in winter or wear the waffle knit top solo in transitional weather. The breathable yet insulating thermals for kids adapt to changing climates. Whether it's toddler boy long sleeve basics or bigger kids' base layer kids gear, this set covers it all.
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Specifications
Long underwear type
Thermal Sets
Fabric content
60% Cotton, 40% Polyester
Pattern
Waffle Knit
Season
Fall, Winter
Directions
Fabric Care Instructions
Machine Wash
Warranty
Warranty information
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
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Customer ratings & reviews
How item rating is calculated
Reviews summary
Pros
- : Provides warmth while allowing airflow.
- : Offers good value at this cost.
- : Allows comfortable layering in various settings.
Neutral
- : Can be thick and warm, but also thin and scratchy.
- : Can be sturdy, but also prone to inconsistencies.
Cons
- : May require sizing up for a comfortable fit.
Generated by AI
Customer images






+4 images
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Showing 1-3 of 112 reviews
Nov 3, 2025
Medna
Item details
Sold byAll Brands NYCDelivered byWalmartColor: Navy/Charcoal
Clothing size: 16-18
4 out of 5 stars review
Verified Purchase
i like the material. but unfortunately, it was too small for my son. my son is 14, even though i chose size 16 to 18.
Helpful?47NMYCWX0JQB1760593694
Jan 16, 2026
Annie
Item details
Sold byAll Brands NYCDelivered byWalmartColor: Black/Ecru
Clothing size: 16-18
3 out of 5 stars review
Verified Purchase
The reason for my low ratings is due to the inaccurate size. They run very small, I originally ordered it for my grandson, however ; I gave it to my nephew whereas he's nine and my grandsons are 12.
Helpful?47NMYCWX0JQB1760593694
Nov 28, 2025
Jessica
Item details
Sold byAll Brands NYCDelivered byWalmartColor: Black/Ecru
Clothing size: 16-18
2 out of 5 stars review
Verified Purchase
Too small!
Size runs small. I would recommend them if the size was not such a big difference. If you order the actual size worn by the individual it was meant for it is useless, not just tight but TOO SMALL. Like them very much other than that. They are soft and warm feeling, but I am left wondering what size would fit, Two sizes up, three sizes bigger? No clue?
Helpful?47NMYCWX0JQB1760593694























































































































































































