










❄️ Stay warm, move free, and never miss a moment of winter fun!
MANCYFIT Thermal Underwear for Boys is a premium fleece-lined base layer set crafted from a 95% polyester and 5% spandex blend. Designed with breathable, 4-way stretch fabric, it offers superior warmth and comfort for cold weather activities. This durable long johns set includes a long sleeve crew neck top and elastic waistband pants, making it an essential winter wardrobe staple that resists shrinkage and wear, ensuring lasting performance season after season.


















| ASIN | B07SVWTY7D |
| Best Sellers Rank | #249,185 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #80 in Boys' Thermal Underwear Sets |
| Customer Reviews | 4.6 4.6 out of 5 stars (980) |
| Date First Available | June 9, 2019 |
| Department | boys |
| Manufacturer | MANCYFIT |
V**R
Exceeded my expectations. Highly satisfied.
My regret is not finding this brand earlier. I have experienced it all; shrinkage after first wash, falling apart straight out of package. My hope was thermals that would serve one season. I am pleasantly surprised by the quality, no shrinkage. My son says they are the warmest he has used thus far (5 star kid approved) I will stick with this brand moving forward;repeat customer. They run slightly big around the waist so hopefully he shall get two winters out
T**A
Great for winter
Bought this and a white set for my son and it keeps him super warm! We live in the Midwest so we get really cold winters and my son loves how it keeps him warm to and from school, I have also had him wear it on outings to the city where it can get frigid cold and it keeps him really warm. Wears well under his regular clothes, not at all bulky. Would deff buy more as he grows out of them!
S**B
Perfect for cold weather
Very good thermal. My 10 year old loves to wear these thermals. They did a good job keeping him warm during our ski trip. They are very nice and soft and super comfortable that he continues to wear them at home on cold nights.
J**S
These thermals do their job.
These thermals arrived promptly and in adequate packaging for the item. Upon inspection, there were no flaws evident. The thermals fit appropriately and as expected for the size that was ordered. They are comfortable and provide for sufficient warmth afforded by the choice of material. I have no concerns with this item and would make the purchase again.
L**I
Great thermals. Will definitely buy more.
My kids lived in these thermals jackets when we went skiing. The colors were bright and vibrant and the fabric was soft and kept them warm. The fabric is well made and they wore them 4 days straight even though they had other thermals to choose from. They did pill a small amount but stayed soft and clean and warm.
~**~
Soft interior
Super soft. It's not very thick but has the warm fleece inside with the wicking material on the outside. My son normally wears 12/14 and I sized up to XL. It's a little large on him but not baggy, so hoping to get 2 seasons out of them.
H**A
Great underwear
Great underwear that is really hot
J**Y
Would buy again!
Super soft and comfortable. Kept my son warm under ski gear.
S**A
Muy buen producto, pero si viene demasiado amplio. Lo recomiendo pero compren una o dos tallas menos de las que usan habitualmente.
A**A
Compré talla S para mi hijo de casi 10 años y le quedó muy bien, no grande pero tampoco justo. Son muy calientitos!
J**A
Buena calidad pero demasiado grandes
P**7
Good quality
E**N
Gracias a otros comentarios compré la talla correcta. Mi hijo es talla 7 MX y la XS le quedó muy holgada. De largo como una talla 7. Está afelpada por dentro y muy liviano y a la vez cálida como esperábamos. La recomiendo sólo revisen bien su talla
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