---
product_id: 38426257
title: "- Thermal Underwear for Kids, Boys Thermals, Long Johns Underwear, Base Layer for Cold Weather/Skiing"
brand: "rocky"
price: "€ 37.48"
currency: EUR
in_stock: true
reviews_count: 13
category: "Rocky"
url: https://www.desertcart.ie/products/38426257-thermal-underwear-for-kids-boys-thermals-long-johns-underwear-base
store_origin: IE
region: Ireland
---

# Moisture-wicking tech keeps dry Ultra-soft fleece lining for warmth Durable poly-spandex with reinforced stitching - Thermal Underwear for Kids, Boys Thermals, Long Johns Underwear, Base Layer for Cold Weather/Skiing

**Brand:** rocky
**Price:** € 37.48
**Availability:** ✅ In Stock

## Summary

> ❄️ Stay warm, stay unstoppable—Rocky thermals have your kid covered!

## Quick Answers

- **What is this?** - Thermal Underwear for Kids, Boys Thermals, Long Johns Underwear, Base Layer for Cold Weather/Skiing by rocky
- **How much does it cost?** € 37.48 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/38426257-thermal-underwear-for-kids-boys-thermals-long-johns-underwear-base)

## Best For

- rocky enthusiasts

## Why This Product

- Trusted rocky brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Machine-wash tough with premium stitching and stretch fabric that won’t wear out.
- • **Stay-Put Design:** No slipping under bulky layers—perfect for active kids on the move.
- • **All-Day Cozy Warmth:** Lightweight fleece base layer that keeps kids warm from morning jogs to bedtime.
- • **Kid-Approved Softness:** No itch, all comfort—your child’s new favorite thermal underwear.
- • **Moisture-Wicking Comfort:** Sweat-free warmth thanks to advanced moisture management fabric.

## Overview

Rocky Thermal Underwear for Kids offers a premium fleece-lined base layer designed to keep boys warm, dry, and comfortable in extreme cold. Featuring a stay-put fit under heavy outerwear, moisture-wicking fabric, and durable poly-spandex construction, these thermals combine performance with softness, making them a top-rated choice for winter activities and everyday wear.

## Description

Buy Rocky Thermal Underwear Kids, Boys Thermal Underwear Set Long Johns Thermals Kids Base Layer kid thermals top bottom set Boys Winter Clothes Shirt & Pants, Ski/Extreme Cold (Black, X-Small) and other Sets at desertcart.com. Our wide selection is elegible for free shipping and free returns.

Review: Soft and very comfortable - Loved keep the regular temperature of the body, soft texture, nice color and size fits well for my son .
Review: True to size and nice and warm. Fabric is soft and stretchy. - Fit is accurate to sizing and the product matches the description. Nice and warm too! My son love it!

## Features

- THERMAL UNDERWEAR KIDS: STAY-PUT DESIGN: Oversized jackets? Check. Bulky sweaters? Double check. Cargo pants loaded with all the essentials? Yup, even them. No matter how heavy your outer layers are, our thermals for kids base layers for cold weather stay put under even the heaviest loads.
- KEEP WARM AND DRY: Ultra soft fleece lined thermals for kids combined with moisture-wicking power can only mean one thing: Your little one is wearing Rocky fleece lined base layer kids underwear. 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 our fleece base layer kids soft fabric that’s lightweight yet warm, it’s the kids underwear boys love.
- EASY TO CLEAN: A few wash cycles, and your long johns are toast. At least, inferior waffle-knit thermal tights are. Not with Rocky winter undies! Our thermal wear for boys are made from durable poly-spandex and superior stitching, washing machines are no match for their tough-as-nails construction.
- THERMALS KIDS LOVE: “Mooooom! They’re SO itchy!” Four words you’ll never hear your little one utter in a pair of Rocky thermal wear for kids boys underwear. With fleecy-soft comfort and a no-ride design, your little one will be nothing but cozy and content with Rocky kids thermal wear.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B0859L35SR |
| Best Sellers Rank | #1,151 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #2 in Boys' Thermal Underwear Sets |
| Customer Reviews | 4.5 4.5 out of 5 stars (5,674) |
| Date First Available  | March 5, 2020 |
| Department  | boys |
| Manufacturer  | Rocky |

## Images

![- Thermal Underwear for Kids, Boys Thermals, Long Johns Underwear, Base Layer for Cold Weather/Skiing - Image 1](263_QL70_.jpg)
![- Thermal Underwear for Kids, Boys Thermals, Long Johns Underwear, Base Layer for Cold Weather/Skiing - Image 2](395_FMwebp_QL65_.jpg)
![- Thermal Underwear for Kids, Boys Thermals, Long Johns Underwear, Base Layer for Cold Weather/Skiing - Image 3](526_FMwebp_QL65_.jpg)
![- Thermal Underwear for Kids, Boys Thermals, Long Johns Underwear, Base Layer for Cold Weather/Skiing - Image 4](658_FMwebp_QL65_.jpg)
![- Thermal Underwear for Kids, Boys Thermals, Long Johns Underwear, Base Layer for Cold Weather/Skiing - Image 5](789_FMwebp_QL65_.jpg)

## Questions & Answers

**Q: What is size chart for 14 yr old 120 lbs 5'3"**
A: Go with the XL for sure.

**Q: Existe alguna talla que sirva para mi hijo de 2 años?**
A: Ellos tienen las tallas exactas como indica la tabla de medidas. Corren grande

**Q: Is the shirt and leggings both fleece lined?**
A: Yes both are lined!  very soft and my grandson loves them!

**Q: Are these thermals moisture wicking?**
A: I'm not sure, all I know is my kids love them for skiing.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Soft and very comfortable
*by C***A on December 27, 2025*

Loved keep the regular temperature of the body, soft texture, nice color and size fits well for my son .

### ⭐⭐⭐⭐⭐ True to size and nice and warm. Fabric is soft and stretchy.
*by A***L on November 3, 2025*

Fit is accurate to sizing and the product matches the description. Nice and warm too! My son love it!

### ⭐⭐⭐⭐⭐ So soft and stylish!
*by S***N on January 16, 2026*

These are soft, warm, and stylish. My son loves how incredibly warm and cozy they are!

## Frequently Bought Together

- Rocky Thermal Underwear for Kids, Boys Thermals Top & Bottom Set, Long Johns Underwear, Base Layer for Cold Weather/Skiing
- Rocky Thermal Underwear for Women, Long Johns Fleece Lined Set, Shirt & Pants, Base Layer w/Leggings/Bottoms Ski/Extreme Cold
- Rocky Thermal Underwear for Kids, Girls Thermals Top and Bottom Set, Long Johns Underwear, Base Layer for Cold weather/skiing

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**Shop now:** [https://www.desertcart.ie/products/38426257-thermal-underwear-for-kids-boys-thermals-long-johns-underwear-base](https://www.desertcart.ie/products/38426257-thermal-underwear-for-kids-boys-thermals-long-johns-underwear-base)

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-17*