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Rocky Thermal Underwear for Boys, Long Johns Fleece Lined Set, Shirt & Pants, Base Layer - 2 of 4Rocky Thermal Underwear for Boys, Long Johns Fleece Lined Set, Shirt & Pants, Base Layer - 3 of 4Rocky Thermal Underwear for Boys, Long Johns Fleece Lined Set, Shirt & Pants, Base Layer - 4 of 4
Rocky Thermal Underwear for Boys, Long Johns Fleece Lined Set, Shirt & Pants, Base Layer - 1 of 4

Rocky Thermal Underwear for Boys, Long Johns Fleece Lined Set, Shirt & Pants, Base Layer

$28.00 reg $41.99
Sale 
save $13.99 (33% off)

sizemedium
colorsolid red
  • solid black
  • solid blue
  • solid heather grey
  • solid jade
  • solid melange grey
  • solid navy
  • solid red
  • solid white

In Stock

Sold & shipped by Rocky Gear
Eligible for registries and wish lists

Fit & style

  • STAY-PUT DESIGN: No matter how heavy your outer layers are, our thermals for kids stay put under even the heaviest loads.
  • KEEP WARM AND DRY: Ultra soft fleece lining combined with moisture-wicking power. No more sweaty, shivering nights - just warm, toasty goodness that wraps you in whole body-comfort.
  • ALL-DAY COMFORT: From morning jogs in freezing temps to chilly winter nights, our underoos are designed to keep you comfortable and warm all day long. With soft fabric that’s lightweight yet warm, it’s the kids underwear boys love.
  • EASY TO CLEAN: Made from durable poly-spandex and superior stitching that can be machine washed for easy clean up after any muddy adventure.
  • THERMALS KIDS LOVE: With fleecy-soft comfort and a no-ride design, your little one will be nothing but cozy and content.

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About this item

Fit & style

  • STAY-PUT DESIGN: No matter how heavy your outer layers are, our thermals for kids stay put under even the heaviest loads.
  • KEEP WARM AND DRY: Ultra soft fleece lining combined with moisture-wicking power. No more sweaty, shivering nights - just warm, toasty goodness that wraps you in whole body-comfort.
  • ALL-DAY COMFORT: From morning jogs in freezing temps to chilly winter nights, our underoos are designed to keep you comfortable and warm all day long. With soft fabric that’s lightweight yet warm, it’s the kids underwear boys love.
  • EASY TO CLEAN: Made from durable poly-spandex and superior stitching that can be machine washed for easy clean up after any muddy adventure.
  • THERMALS KIDS LOVE: With fleecy-soft comfort and a no-ride design, your little one will be nothing but cozy and content.
Rocky’s unique moisture-wicking fibers and elastic seams keep them warm while ending the sweating and awkward adjustments. Fans who were tired of low-quality thermal underwear that caused overheating and sweating say that Rocky’s unique moisture-wicking fibers keep them warm (without the uncomfortable sweaty messes). Old-school thermals and wool base layers are known for being rough and scratchy on all-day adventures. That’s why Rocky thermals use this Soft-Touch Polyester Blend that lets you enjoy your outdoor adventures all day long. This signature fleece-lined design is warmer than costly puffy thermals but without the bulk of insulated underwear that leaves you feeling 'strangled' or 'trapped'. Rocky thermal shirts and leggings are crafted with heavy-duty, high-quality stitching that can be machine washed for easy clean up after any muddy adventure. Plus, these seams are tough, so you won’t have to worry about unraveling. Grab this set of premium thermal underwear for boys and see why customers say Rocky Thermals keep them warm, dry, and smiling all day long.

house of hosiery
boys underwear

SIZE US SIZE (inches) CHEST (inches) WAIST (inches) LENGTH (inches)
XXS 2-3 19-21 20-21 22.5
XS 4-5 22-24 22-23 22.5
S 6-7 25-27 24-25 28.5
M 8-10 28-30 26-27 31.5
L 12-14 31-33 28-29 34.5
XL 16-18 34-36 30-31 37.5

All Sizes in Inches Unless Otherwise Stated

Number of Pieces: 2
Sizing: Kids
Piece 1: Thermal Underwear Shirt
Piece 1 Material: 90% Polyester & 10% Spandex
Piece 1 Garment Length: At Waist
Piece 2: Thermal Underwear Pants
Piece 2 Garment Closure: Pull-On
Fabric Name: Thermal
Garment Details: Tagless
Fabric Weight Type: Lightweight Fabric
Piece 1 garment closure type: Pullover
Piece 2 apparel material 1: Polyester
Piece 2 apparel material 2: Spandex
Piece 2 apparel material 2 percentage: 10
Care and Cleaning: Machine Wash, Tumble Dry
TCIN: 93254206
UPC: 810028827691
Origin: imported
The above item details were provided by the Target Plus™ Partner. Target does not represent or warrant that this information is accurate or complete. On occasion, manufacturers may modify their items and update their labels.
We recommend that you do not rely solely on the information presented. If you have a specific question about this item, you may consult the item's label, contact the manufacturer directly or call Target Guest Services at 1-800-591-3869.

Shipping details

Estimated ship dimensions: 12 inches length x 8 inches width x 1 inches height
Estimated ship weight: 0.5 pounds
This item cannot be shipped to the following locations: American Samoa (see also separate entry under AS), Guam (see also separate entry under GU), Northern Mariana Islands, Puerto Rico (see also separate entry under PR), United States Minor Outlying Islands, Virgin Islands, U.S., APO/FPO, Alaska, Hawaii
item ships from third party seller: Rocky Gear

Return details

This item can be returned to any Target store or Target.com.
This item must be returned within 30 days of the date it was purchased in store, shipped, delivered by a Shipt shopper, or made ready for pickup.
See the return policy for complete information.

Related Categories

4.6 out of 5 stars with 7 reviews
100% would recommend
5 recommendations

Great for keeping warm in a colorado winter!

5 out of 5 stars
Thumbs up graphic, would recommend
zackatz - 3 days ago
Great set of thermal underwear for everyone trying to keep warm in the winter. Very soft material, and very warm and dry. Size is true to fit. Can be worn as cozy PJs on a pinch too. Great layer for colder days.
Did you find this review helpful?

Thermal Underwear

5 out of 5 stars
Thumbs up graphic, would recommend
CaptAwsm - 9 days ago
This thermal underwear set is great! It’s both comfy and fits well. It’s true to size and works as intended. We got this to use for a cold Halloween under a costume and for all of our winter sports/adventures. Love that it comes in black and it’s quite well made.
Did you find this review helpful?

Comfy and keeps my son warm!

5 out of 5 stars
Thumbs up graphic, would recommend
Cressy - 11 days ago
I got this thermal underwear for my son, and they’ve been amazing so far. He’s been wearing them regularly, and they’ve kept him warm and comfortable whether he's outside playing, at school, or just indoors. The fleece lining is super soft against the skin; he mentioned how nice they feel without being bulky or restrictive. The fit is just right, snug but stretchy, allowing him to move around freely without bunching up under clothes. They also hold up well after multiple washes, which is a huge plus with kids' clothing. Overall, these thermals have become a staple in his winter wardrobe. I’d definitely recommend them to other parents looking for something practical, warm, and kid-approved.
Did you find this review helpful?

Decent, not great

2 out of 5 stars
BrainDoc - 12 days ago
Please feel okay, nothing exceedingly high quality but they get the job done. I'm not sure how long you're going to last for a few watches. The stitching does not seem to instill confidence. Time will tell.
Did you find this review helpful?

Makes great pjs or a under layer for outings on really cold days

5 out of 5 stars
Thumbs up graphic, would recommend
TOMNYC - 14 days ago
Soft and very comfortable. Not the most thermal of material but can work well as a base layer. My son loves to wear them as pajamas at home. They are true to size and not too tight or bulky. They are easy to clean in the machine and still looks like new after 3 washes.
Did you find this review helpful?

So soft and comfy

5 out of 5 stars
Thumbs up graphic, would recommend
Mommytothree - 16 days ago
I got these for my 6 year old and they are SO comfy. My son LIT UP trying these on saying they're SOOO comfy. I'm going to look and see if they sell in my size! The inside is like a super soft micro fleece and the outside is that buttery texture all women love in their leggings. Super warm too! HIGHLY recommend.
Did you find this review helpful?

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