

When it comes to daily wear, Thermajohn offers thermal underwear for kids for a snug fit. Our boys thermal underwear make the perfect base layer kids for when your kids are outside in the snow or lounging indoors. Our boys long johns thermal set features an elastic waistband so they stay in place with no drooping or chances of them falling off. Kids long johns thermal set boys are lightweight and breathable and can be worn under their regular clothes as part of a winter layering system. Long johns for boys will retain their body heat so they stay warmer longer. To keep your kids dry and odor free, our boys long johns with wick away moisture to reduce the chances of hypothermia and frostbite. ThemaJohn Kids Boys Thermal Set is so comfortable, your kids will want to wear them to school, bed, sled riding even indoors playing video games. Our kids thermals top and bottom set are essential for your kids cold weather comfort with fleece for added warmth. These boys thermal pants, boys fleece lined thermal sets are made to feel ultra-soft against their skin so there’s no need to worry about discomfort like chafing or itchiness. Any boys thermal shirt or clothing for extreme cold weather is perfect for traveling and easy to take care of. Best extreme cold weather thermals or long underwear kids make perfect kids winter clothes. You can buy these as a kids thermals top and bottom set to keep your younger children warm. Boys thermal pants and cold weather gear is essential for when the winter is at its worst and kids snow gear is good for all occasions. Kids base layer ski or boys thermals is vital for the slopes and hiking and toddler thermal underwear set keep the warm with the family. Kids winter baselayer and kids long johns is the right type of youth thermal underwear set for playing in the snow or building a snow fort. Winter thermal clothes for kids and a toddler long johns, toddler long underwear or boys fleece lined thermal set will keep the small kids warm. Review: Comfy, great quality - I used these for my son who wanted to be a minion for Halloween. They were perfect! Bonus points for being extra warm. Then we used them as long John’s for when it snowed out. Would definitely purchase again. My son even slept in them as PJ’s so we definitely got our money worth from them. Review: No just for children - I purchased these in XL dark navy blue. I'm 107lbs female 5'5 And these fit great! The sleeve on the top feels a bit short but they do come to a comfortable place so that might just be a personal preference. They are extra soft. The opening in the bottoms is sewn closed which is perfect. I'm wearing them to bed as I type this and couldn't love them more. Color is great. Fit is perfect and I'm nice and warm. Win win win.



















| Care instructions | Machine Wash |
| Fabric type | 92% Polyester, 8% Spandex |
| Origin | Imported |
A**R
Comfy, great quality
I used these for my son who wanted to be a minion for Halloween. They were perfect! Bonus points for being extra warm. Then we used them as long John’s for when it snowed out. Would definitely purchase again. My son even slept in them as PJ’s so we definitely got our money worth from them.
D**F
No just for children
I purchased these in XL dark navy blue. I'm 107lbs female 5'5 And these fit great! The sleeve on the top feels a bit short but they do come to a comfortable place so that might just be a personal preference. They are extra soft. The opening in the bottoms is sewn closed which is perfect. I'm wearing them to bed as I type this and couldn't love them more. Color is great. Fit is perfect and I'm nice and warm. Win win win.
F**S
Great base layer (or PJ)
Soft, stretchy, comfortable. Great base layer under jeans, rain pants, T shirts, etc! Often my kids will wear these as Pajamas and then just get dressed in the morning by pulling their clothes ontop. Keeps them warm. Great quality and price
M**3
Perfect for cold weather
Got these for my kids to wear under tball uniforms. They kept them warm and were a great fit. They are super soft, the kids loved them and I would totally buy again. Great price for the set. Fabric was thick and soft on the inside. Perfect for layering, especially for sports when it’s kind of cold but not super cold.
A**)
Warm and cozy but pill
These are great they’re warm they fit perfectly but they do pill easily. Doesn’t bother me that much since they’re an under layer but it drives one of my kids crazy because they can feel it through the shirt. They’re very soft and hold up well in the washer without shrinking.
M**R
Very soft, high quality
Ordered two of these sets, one for each child. They are a nice weight, soft and thick but not bulky. they wore them skiing and stayed nice and warm. these are also easy to wash and dry. The fit is true to size but a bit on the small size so if your child is on the larger side of their size I would size up. The colors are also all very close to each other in shades of gray so it's hard to tell them apart even though we ordered different colors.
M**B
Makes great PJs
My kid loves these for PJs, he just said “100 gold stars” when I asked what to give them. These are thick and would be hot but little kids are cold easily. California fire rules have ruined PJ for kids with wide shoulders and solid bodies (my kid is fit and soild, average height but big skeleton and muscular for a kid - more football player than swimmers build). I don’t allow hanging out in underwear so you must have shirt and pants/ shorts on in the house. He does not want to keep his school clothes on. Pj are so slim they pinch his armpits and squeeze his legs. I know it is not just us because I have heard this complaint from others parents about PJ sizing being overly slim cut. He is a size 5 in clothes but I have to get at least an 8 or 10 in cotton PJs to fit his soildness but his legs are too short and the cuffs are bunched or rolled….. BUT long Johns fit like they should!!!! I also buy thin kinds of long johns (32 degrees brand) for when it is warmer months if he wants to hang out in the house in comfortable clothes. Hopefully California wont figure this out and force long johns to be tight.
D**K
Very soft and high quality
Purchased the XL (US size 11-12) for my 10 year old. They are slightly loose on him, but would fit as they should for an 11/12 year old. I was impressed with the thickness, and quality feel. Very soft on the inside. The double layer of fabrics is perfect for our northern Maine winters. I would not necessarily use them for hiking or fall temps. Very impressed. Buy them.
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