Rocky Kids Thermal Underwear Top & Bottom Set Long Johns for Boys, Melange Charcoal Grey Medium
Rocky Kids Thermal Underwear Top & Bottom Set Long Johns for Boys, Melange Charcoal Grey Medium
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Rocky Kids Thermal Underwear Top & Bottom Set Long Johns for Boys, Melange Charcoal Grey Medium

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Underwear Top Bottom Set Long Johns for Boys Chistmas Design XXSRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Red SmallRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Navy XLRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys White LargeRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Cars Design XLRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Red Plaid XSRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys White Plaid XXSRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Jade SmallRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Triangle Design MediumRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Chistmas Design SmallRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Burgundy Striped XSRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Melange Charcoal Grey XLRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Triangle Design SmallRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Chistmas Design MediumRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Space Design XSRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys White Plaid XLRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Fire Truck Design LargeRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Heather Grey SmallRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Airplane XSRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Chistmas Design XSRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Black SmallRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Red Plaid MediumRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys White SmallRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Black Striped SmallRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Seafoam Striped XSRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Chistmas Design LargeRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Black Emoji XSRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Red MediumRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Seafoam Striped LargeRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Seafoam Striped SmallRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Blue LargeRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Jade XSRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Black Striped XLRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Red Plaid XXSRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Jade LargeRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Black LargeRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Seafoam Striped MediumRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Dinosaur Design SmallRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Fire Truck Design XLRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Dinosaur Design XLRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Glow in the Dark Skeleton XLRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Red LargeRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Triangle Design XSRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Melange Charcoal Grey LargeRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys White Plaid LargeRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Black XSRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Airplane MediumRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Triangle Design XXSRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Dinosaur Design XSRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Airplane XXSRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Green Plaid XXSRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Green Plaid XLRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Melange Charcoal Grey SmallRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Dinosaur Design MediumRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Black Striped MediumRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Triangle Design LargeRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Cars Design MediumRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Blue XSRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Burgundy Striped MediumRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Black Striped LargeRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Red Plaid LargeRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Green Plaid MediumRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Black Striped XSRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Fire Truck Design XXSRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Black Emoji MediumRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Jade XLRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Heather Grey XSRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys White XSRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Glow in the Dark Skeleton LargeRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Cars Design XXSRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Green Plaid SmallRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Green Plaid XSRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Red Plaid XLRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Black Emoji LargeRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Red Plaid SmallRocky Kids Thermal Underwear Top Bottom Set Long Johns for Boys Airplane Large
ColorSolid Melange Grey
Clothing SizeM

Key item features

  • Medium size kids thermals top and bottom set for boys
  • Kids long underwear that will keep your child toasty when the temperature drops
  • Thermal underwear great to wear as base layer when skiing, snowboarding, or ice skating
  • Machine washable thermal underwear for kids with fleece-lined design
  • Pull on closure thermal shirt and pants made from spandex andmoisture-wicking fibers to keep them warm and dry

About this item

Product details

Get your kid ready for the cold weather with thermal underwear.

The typical traditional base layer is scratchy and uncomfortable to wear for long periods of time. That’s why having a kids thermals top and bottom set that can keep your little one cozy and toasty without that feeling is an absolute must!

With our long johns for kids, your little one can stay warm and comfortable throughout the cold winter months. Our boys thermal set features a soft, comfy polyester blend so they can enjoy adventures in comfort.

The warmth and versatility of Rocky kids thermal underwear set is sure to keep your little one cozy!

Our long johns for boys are crafted using elastic seams that keep the thermal shirts and thermal pants from falling down or bunching up (even on long walks to school). They’re also great as a base layer when skiing, snowboarding, or ice skating with the family - without the sagging and awkward adjustments.

Thanks to the fleece-lined design, our thermal underwear for boys gives your kids exceptional warmth and comfort. Fans say it is more comfortable than traditional puffy thermals or wool base layers that can leave you feeling strangled or trapped.

These long johns for kids are easy to clean, too! Just toss them in the washing machine and let the machine do the rest. We use excellent stitching for our kids' base layer to stand up to frequent washing, as well as even on super-active days and many muddy adventures.

When the temperatures start to drop, don't be caught unprepared and have our boys thermal underwear set at the ready. Add the Rocky Kids Thermal Underwear Top & Bottom Set to your cart today!

  • Medium size kids thermals top and bottom set for boys
  • Kids long underwear that will keep your child toasty when the temperature drops
  • Thermal underwear great to wear as base layer when skiing, snowboarding, or ice skating
  • Machine washable thermal underwear for kids with fleece-lined design
  • Pull on closure thermal shirt and pants made from spandex andmoisture-wicking fibers to keep them warm and dry
info:
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Specifications

Fabric content

90% Polyester, 10% Spandex

Clothing size

M

Gender

Male

Season

Winter

Directions

Fabric Care Instructions

Machine washable

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.

Customer ratings & reviews

4.4 out of 5 stars
stars
21 ratings19 reviews
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Showing 1-3 of 19 reviews

Oct 9, 2026
Reviewer name: JessicaG
5 out of 5 stars
5 out of 5 stars review

The coziest most functional long johns I've ever experienced!

Okay these are the softest-lined pajamas/long johns I have ever encountered in my 16 years of raising kids. They are so well thought out functionally too. If you need them as an inside layer, the material is slippery enough on the outside for you to easily slip over the outer layers. They are fitted enough without being too snug. The sleeves are the perfect length for function. My son absolutely loves these. Right now we haven't gotten to the colder parts of winter yet so they're working as pajamas and he, my super sensory sensistive kid, has made these an essential part of his cozying up routine. I considered knocking a star because they did pill up pretty quickly, but because they're not an outer layer and because every other part of the quality was surprisingly good, I let it slide.

Incentivized Review
Review from influenster.com
Helpful?5VS2H7I1F12F1261826742
Oct 9, 2026
Reviewer name: ShirleyM
5 out of 5 stars
5 out of 5 stars review

Cozy, Warm, & Perfect for Chilly Days!

The Rocky Thermal Underwear Top & Bottom Set for boys is a must-have for keeping little ones warm and comfortable when the temperature s drop! The long Johns are perfect for layering under everyday clothes, school outfits, pajamas, or winter gear. They're a great addition to any boy's cold-weather wardrobe, providing that extra layer of warmth for outdoor adventures and chilly mornings. They are stretchy and durable. Our boy loves wearing them as just pajamas! They have become his favorite pajamas. I love how practical and versatile this set is for the colder months! If you're looking for a dependable thermal set to help keep your boy cozy all season long, this one is definitely worth considering, and winter-ready-every boy needs a set like this! I highly recommend the Rocky Thermal Underwear Top & Bottom Long Johns Set for Boys.

Incentivized Review
Review from influenster.com
Helpful?5VS2H7I1F12F1261826742
Oct 23, 2026
Reviewer name: RoxismarC
5 out of 5 stars
5 out of 5 stars review

Wonderful,very good quality

This thermal set is super comfortable for the little ones of the house softness and covering texture the size is just right to the one you measure for the first time trying it and my little one is loved it highly recommend for the winter to wear underneath

Incentivized Review
Review from influenster.com
Helpful?5VS2H7I1F12F1261826742
Current price is Now $16.99
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