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❄️ Keep your little adventurer warm, dry, and unstoppable!
ROCKY Thermal Underwear for Kids offers a premium 2-pack of fleece-lined long johns designed for boys. Crafted from a durable 90% polyester and 10% spandex blend, these thermals feature moisture-wicking technology and a stay-put design that ensures comfort and warmth under heavy winter layers. Machine washable and built to withstand active play, they provide all-day cozy softness without itchiness—ideal for cold weather, skiing, or everyday winter wear.
| ASIN | B0C6N1MVTC |
| ASIN | B0FHSLHMG6 |
| Age Range Description | Little Kid |
| Apparel Closure Type | Pull On |
| Best Sellers Rank | #1,014,937 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #106 in Boys' Thermal Underwear Sets |
| Brand Name | Rocky |
| Collection Name | Rocky |
| Color | Black Emoji Design |
| Customer Reviews | 4.7 4.7 out of 5 stars (44) |
| Date First Available | July 16, 2025 |
| Department | boys |
| Fabric Type | 90% Polyester, 10% Spandex |
| Fit Type | Regular |
| Global Trade Identification Number | 00810115364818 |
| Material Type | Polyester Blend |
| Neck Style | Crew Neck |
| Occasion Type | Everyday |
| Pattern | Solid |
| Product Care Instructions | Machine Wash |
| Size | X-Small |
| Sleeve Type | Long Sleeve |
| Style Name | Thermals - Set |
| Style Number | 85-BK Emoji-XS-2pk |
R**A
My son loves
So my son doesn't like wearing underwear but you know he needs like something under. So we came to an agreement and he got to choose which ones he likes and how many. He got this one and one other from this seller. It was a little big but that's okay. He is a tall boy. He will grow into them. It is great quality. Very colorful
J**T
True to size
Five year old twins love these on cold Chicago nights
C**N
Great for layering!
Our twelve year old son really loved the two pair we purchased for him.
A**R
Great stretch
Be aware of the size! Bought the XS for my 38 lb. - 4y for a ski trip but ended up wearing them myself. (155 lb. 5'7") Needless to say they have great elasticity & they were comfy cozy & warm.
M**N
Protecting things of value
that they keep my grandson warm
P**I
Lovely product overall
Loved the fabric, comfort and tge coziness
V**R
Reliable warmth over the years
As a long-time purchaser of Rocky Thermal Underwear, I've found them to be a dependable choice for winter warmth. Over the past several years, I've invested in at least 12 sets for my son, and they've consistently delivered in terms of comfort and insulation. One of the standout features is their remarkable warmth, which keeps my son cozy throughout the New England winter. The comfort level is equally impressive, making them ideal for extended wear. He even wears them as pajamas. The fit has been consistent across purchases, so sizing isn't a problem. Despite frequent use and washing, they have retained their thickness, maintaining their effectiveness at keeping my son warm. Remarkably, none have worn out, even with heavy usage. I did deduct one star due to a recent batch exhibiting pilling issues. While still functional and warm, the appearance of pills (after only a few washes) is a noticeable departure from earlier purchases, which did not exhibit this problem. Despite this minor flaw, Rocky Thermal Underwear remains a reliable choice for winter wear, offering consistent warmth and comfort year after year.
R**Y
I must not have read the description
Very disappointed. I wanted a thermal underwear for my kiddo. Nope. This is not it. I don't even think it would keep him warm. The only "warmth" comes from a minky lining. Otherwise it's a poor fabric. I found what I wanted for a fourth of the price at Walmart. But the patterns are cute.
A**R
Seem to be well made and comfortable. A little on the larger side.
Trustpilot
1 day ago
2 weeks ago