---
product_id: 775092429
title: "Rocky Thermal Underwear For Boys (Thermal Long Johns Set) Shirt & Pants, Base Layer w/Leggings/Bottoms Ski/Extreme Cold (Red Plaid - X-Large)"
brand: "rocky"
price: "$60.61"
currency: USD
in_stock: true
reviews_count: 1
category: "Rocky"
url: https://www.desertcart.us/products/775092429-rocky-thermal-underwear-for-boys-thermal-long-johns-set-shirt
store_origin: US
region: United States of America
---

# Fleece-lined warmth beats bulky layers Durable elastic seams prevent sagging Machine washable for hassle-free care Rocky Thermal Underwear For Boys (Thermal Long Johns Set) Shirt & Pants, Base Layer w/Leggings/Bottoms Ski/Extreme Cold (Red Plaid - X-Large)

**Brand:** rocky
**Price:** $60.61
**Availability:** ✅ In Stock

## Summary

> ❄️ Stay warm, move freely, and never miss a winter moment!

## Quick Answers

- **What is this?** Rocky Thermal Underwear For Boys (Thermal Long Johns Set) Shirt & Pants, Base Layer w/Leggings/Bottoms Ski/Extreme Cold (Red Plaid - X-Large) by rocky
- **How much does it cost?** $60.61 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/775092429-rocky-thermal-underwear-for-boys-thermal-long-johns-set-shirt)

## 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

- • **Stay-Put Fit:** Elastic seams ensure the thermal set stays perfectly in place—no awkward adjustments during play or sports.
- • **All-day Cozy Warmth:** Soft polyester blend with fleece lining keeps boys warm without the bulk or itch.
- • **Built for Adventure:** Ideal base layer for skiing, snowboarding, or winter school days, combining warmth and flexibility.
- • **Stylish & Functional:** Classic red plaid design that kids love, blending comfort with cool winter style.
- • **Effortless Maintenance:** High-quality stitching withstands repeated machine washes, ready for every muddy, active day.

## Overview

Rocky Thermal Underwear for Boys is a premium fleece-lined base layer set designed for extreme cold. Made from a soft polyester blend with durable elastic seams, it offers superior warmth without bulk or itchiness. Machine washable and built to last, this red plaid long johns set is perfect for active kids who need reliable comfort and style during winter sports or everyday cold weather.

## Description

Product Description

Review: They fit well and the kids like them. - Bought these for my nephews for both layering pieces and winter pajamas. The kiddos like how soft they feel and they wear them all the time.

## Features

- NO MORE OLD-SCHOOL SCRATCHY INSULATED UNDERWEAR: Traditional cotton long underwear are simply scratchy and uncomfortable to wear for long periods of time, Rocky thermals are made from a soft, comfy polyester blend so you can enjoy all-day comfort, and your winter adventures never have to end
- FLEECE-LINED COMFORT (WITHOUT THE BULK): Don’t let the lightweight fabric fool you, thanks to the fleece-lined design, this thermal underwear set gives you high-quality warmth that fans say keep them warmer than traditional puffy thermals or wool base layers that leave you feeling strangled or trapped
- NO MORE AWKWARD ADJUSTING THANKS TO ELASTIC SEAMS: Check out the pictures and see how this boy’s thermal underwear set is crafted using elastic seems that keep tops and bottoms from falling down or bunching up (even on long walks to school), and if your family enjoys skiing, snowboarding, or ice skating then Rocky makes a great base layer -- but without the sagging and ‘awkward adjustments’
- MACHINE WASHABLE FOR EASY CLEANUP: While cheap Thermal Underwear unravel in the washing machine after only a few cycles, Rocky uses high-quality stitching for thermal leggings and long sleeve shirts that stand up to the washer -- even with super-active days and many muddy adventures

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09BY4QTXD |
| Brand Name | Rocky |
| Care instructions | Machine Wash |
| Closure Type | Pull On |
| Colour | Red |
| Customer Reviews | 5.0 out of 5 stars 1 Review |
| Fabric Type | Cotton,Polyester,Wool |
| Fit Type | Loose, fitted |
| Global Trade Identification Number | 00810065352927 |
| Manufacturer Part Number | 85-PLAID R-XL |
| Material Type | Wool |
| Material composition | Fleece |
| Model Number | 85-PLAID R-XL |
| Neck Style | Crew Neck |
| Pattern | Plaid |
| Product Care Instructions | Machine Wash |
| Season and Collection Year | Rocky |
| Size | XL |
| Sleeve Type | Long Sleeve |

## Images

![Rocky Thermal Underwear For Boys (Thermal Long Johns Set) Shirt & Pants, Base Layer w/Leggings/Bottoms Ski/Extreme Cold (Red Plaid - X-Large) - Image 1](https://m.media-amazon.com/images/I/61xAk4maaFL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ They fit well and the kids like them.
*by C***Y on 16 July 2026*

Bought these for my nephews for both layering pieces and winter pajamas. The kiddos like how soft they feel and they wear them all the time.

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**Shop now:** [https://www.desertcart.us/products/775092429-rocky-thermal-underwear-for-boys-thermal-long-johns-set-shirt](https://www.desertcart.us/products/775092429-rocky-thermal-underwear-for-boys-thermal-long-johns-set-shirt)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-08-15*