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❄️ Keep your little adventurer warm, dry, and unstoppable!
Rocky Thermal Underwear for Kids offers a premium base layer crafted from a durable 90% polyester and 10% spandex blend. Designed with a stay-put fit and ultra-soft fleece lining, it delivers superior warmth and moisture-wicking performance for cold weather and skiing. Machine washable and built to endure, this thermal set is the #1 choice for boys’ thermal underwear, combining comfort, durability, and all-day protection against the cold.
| ASIN | B01M12L67P |
| ASIN | B0859L35SR |
| Age Range Description | Little Kid |
| Apparel Closure Type | Pull On |
| Apparel Fabric Stretch | Medium Stretch |
| Apparel Fabric Weight Class | Medium Weight |
| Best Sellers Rank | #26,580 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #1 in Boys' Thermal Underwear Sets |
| Brand Name | Rocky |
| Collection Name | Rocky |
| Color | Black |
| Customer Reviews | 4.5 4.5 out of 5 stars (5,721) |
| Date First Available | March 5, 2020 |
| Department | boys |
| Fabric Type | 90% Polyester, 10% Spandex |
| Fit Type | Regular |
| Fit to Size Sentiment | fits as expected |
| Manufacturer | Rocky |
| Manufacturer Part Number | LYSB01M12L67P-SPRTSEQIP |
| Material Type | Polyester Blend |
| Neck Style | Crew Neck |
| Number of Items | 1 |
| Occasion Type | Everyday |
| Package Quantity | 1 |
| Pattern | Solid |
| Product Care Instructions | Machine Wash |
| Size | Large |
| Sleeve Length Description | Long Sleeve |
| Sleeve Type | Long Sleeve |
| Style Name | Snug |
| Style Number | 85BKL |
| UPC | 789900659432 |
| Unit Count | 1 Count |
C**A
Soft and very comfortable
Loved keep the regular temperature of the body, soft texture, nice color and size fits well for my son .
S**A
Breathable, fun design, comfortable
Good fitting, kept my grandson warm while playing in the blizzard of 2026.
C**S
Comfy, cheap and Celsius inhibitor
Nice
E**H
True to size and soft
I initially thought they were too small but when they tried them on they fit perfect, but I do have skinny kids. They immediately loved them and said “these are so soft” and asked to wear them for the rest of the day.
L**O
Good quality thermals for frigid weather
The thermal underwear are pretty good quality.
V**V
Cozy for winters
So warm and cozy, my son loves it. Great to wear as a base layer in the winter. My son loved it so much I had to buy another. Yes, it does pill. But i think it's because the fabric is thin. Serves our purpose well.
L**E
Super soft and warm
Super soft and warm and the fit is just right
B**N
Decent
Decent base layer. The top is too short for my son but he is tall. Bottoms fit fine.
R**.
My son loves these, they are light and breathable, yet warm. The material is exceptional, and so far has not shrank. My child uses these for skating and hockey. We used to layer up with pajama pants, but this is much better. Coincidentally, these can also be used as pajamas. * They are comfortable. * They are breathable. * They do not shrink.
K**E
Ligero y muy suave
B**E
As expected
D**M
Fits great!!
R**A
Its not a set as has been vaguely mentioned in the product description. As other reviews mention, its only the top that they send. Disappointed.
Trustpilot
2 weeks ago
1 day ago