---
product_id: 350325356
title: "Thermal Underwear for Kids Toddler Winter Base Layer Long Johns Sets for Girls Boys"
brand: "american trends"
price: "¥6634"
currency: JPY
in_stock: true
reviews_count: 12
category: "American Trends"
url: https://www.desertcart.jp/products/350325356-thermal-underwear-for-kids-toddler-winter-base-layer-long-johns
store_origin: JP
region: Japan
---

# Moisture-wicking tech 4-way stretch warmth Shape-retaining wash durability Thermal Underwear for Kids Toddler Winter Base Layer Long Johns Sets for Girls Boys

**Brand:** american trends
**Price:** ¥6634
**Availability:** ✅ In Stock

## Summary

> ❄️ Keep your little ones warm, dry, and unstoppable this winter!

## Quick Answers

- **What is this?** Thermal Underwear for Kids Toddler Winter Base Layer Long Johns Sets for Girls Boys by american trends
- **How much does it cost?** ¥6634 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/350325356-thermal-underwear-for-kids-toddler-winter-base-layer-long-johns)

## Best For

- american trends enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Durable material resists sagging, shrinking, and deformation wash after wash
- • **Stay-Put Design:** High-elasticity waist and cuffs prevent slipping or marks on delicate skin
- • **All-Day Dry Comfort:** Advanced moisture-wicking fabric keeps toddlers sweat-free and cozy
- • **Snug Yet Stretchy Fit:** 4-way elasticity hugs every move without restriction
- • **Versatile Winter Essential:** Perfect base layer for school, play, skiing, or stroller walks in freezing temps

## Overview

This toddler thermal underwear set combines high-quality, lightweight, and elastic fabric engineered for superior warmth and moisture management. Designed with 4-way stretch and a stay-put fit, it ensures comfort and durability through active winter days and repeated washes. Ideal as a versatile base layer for boys and girls, it supports all cold-weather activities from school to outdoor play.

## Description

Buy Girls Underwear Kids Thermal Underwears Toddler Winter Base Layer Long Johns Sets for Boys Dark Pink Large (100) /3T-4T and other Sets at desertcart.com. Our wide selection is elegible for free shipping and free returns.

Review: High-Quality, Warm & Perfect for Active Toddlers in Cold Weather - I purchased these thermal underclothes for my toddlers, and they’ve been a total game changer this winter. The material is thick, soft, and really high quality — warm enough to handle cold weather, but still lightweight and stretchy so my kids stay comfortable while playing and moving around. As a stay-at-home mom who’s constantly on the go, I really appreciate how dependable these are. It’s been harder getting out in the colder months because I don’t want the kids freezing, but since buying these, they’ve handled the weather so much better. The fabric has great elasticity and fits snugly without feeling tight or restrictive. I love that it absorbs moisture and wicks sweat, especially when my toddlers are running around or bundled up for a long time. The design is simple and works under any outfit, and the round neck and stretchy cuffs help everything stay in place without rolling up or sagging. Even after multiple washes, the set keeps its shape — no stretching, shrinking, or losing warmth. They feel durable and well-made, which is exactly what I need for daily wear during winter. These thermals are perfect as a base layer for school days, outdoor play, stroller walks, or any cold-weather activity. If you want reliable, warm, and comfy winter wear for toddlers, this set is definitely worth it.
Review: Perfect for layering in cold weather - Ordered these for my daughter to wear under her snow suit. They are perfect. Very soft, and comfortable. Fit true to size.

## Features

- Material: The toddler thermal set is made of high-quality and highly elastic fabric, which is warm, lightweight, moisture-absorbent and sweat-wicking.It offers 4-way elasticity, conforms to the child's body curves, and provides no sense of restraint during movement.
- Design: Thermal Underwear for Kids,these thermal long Johns perfectly blend comfort, warmth, elasticity and moisture resistance.The simple design and a few basic colors are suitable for all winter clothes for girls and boys.Thermal underwear is durable and resistant to deformation.Even after multiple washes, it can still maintain its shape and prevent sagging or shrinking.
- Features: The Base Layer set adopts three-dimensional cutting, with a high-elasticity waist and cuffs, which can prevent the clothes from slipping or leaving marks on the body.The round neck design makes it convenient to pair with various outerwear.
- Base layers: Toddler winter clothes for boys girls, perfect for indoor/outdoor winter activities.For outdoor recreation activities, as run, ski，school，cycle in the cold, make sure to use the thermal underwear set for under your clothing to keep warm and cozy in freezing cold climates or bad weather.
- Kids winter clothes: Kids underwear set- Designed to keep you dry, this long-sleeved shirt and long pants are made to be wick away sweat and other moisture, this thermal underwear for kids set will do its activitiess no matter how active you are.Suitable for machine washing.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B0BWDM125W |
| Best Sellers Rank | #2,577 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #5 in Boys' Thermal Underwear Sets |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,163) |
| Date First Available  | February 21, 2023 |
| Department  | boys |

## Images

![Thermal Underwear for Kids Toddler Winter Base Layer Long Johns Sets for Girls Boys - Image 1](https://m.media-amazon.com/images/I/31jQatIkv8L.jpg)
![Thermal Underwear for Kids Toddler Winter Base Layer Long Johns Sets for Girls Boys - Image 2](https://m.media-amazon.com/images/I/414Bf0UVTXL.jpg)
![Thermal Underwear for Kids Toddler Winter Base Layer Long Johns Sets for Girls Boys - Image 3](https://m.media-amazon.com/images/I/414SxR9tF9L.jpg)
![Thermal Underwear for Kids Toddler Winter Base Layer Long Johns Sets for Girls Boys - Image 4](https://m.media-amazon.com/images/I/41k166SwLEL.jpg)
![Thermal Underwear for Kids Toddler Winter Base Layer Long Johns Sets for Girls Boys - Image 5](https://m.media-amazon.com/images/I/51RnNowStzL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ High-Quality, Warm & Perfect for Active Toddlers in Cold Weather
*by B***E on December 11, 2025*

I purchased these thermal underclothes for my toddlers, and they’ve been a total game changer this winter. The material is thick, soft, and really high quality — warm enough to handle cold weather, but still lightweight and stretchy so my kids stay comfortable while playing and moving around. As a stay-at-home mom who’s constantly on the go, I really appreciate how dependable these are. It’s been harder getting out in the colder months because I don’t want the kids freezing, but since buying these, they’ve handled the weather so much better. The fabric has great elasticity and fits snugly without feeling tight or restrictive. I love that it absorbs moisture and wicks sweat, especially when my toddlers are running around or bundled up for a long time. The design is simple and works under any outfit, and the round neck and stretchy cuffs help everything stay in place without rolling up or sagging. Even after multiple washes, the set keeps its shape — no stretching, shrinking, or losing warmth. They feel durable and well-made, which is exactly what I need for daily wear during winter. These thermals are perfect as a base layer for school days, outdoor play, stroller walks, or any cold-weather activity. If you want reliable, warm, and comfy winter wear for toddlers, this set is definitely worth it.

### ⭐⭐⭐⭐⭐ Perfect for layering in cold weather
*by N***I on January 8, 2026*

Ordered these for my daughter to wear under her snow suit. They are perfect. Very soft, and comfortable. Fit true to size.

### ⭐⭐⭐⭐⭐ Perfect base layer
*by A***R on November 1, 2025*

Warm and cozy. Very soft and fits true to size. This is a perfect base layer for my toddler.

## Frequently Bought Together

- Thermal Underwear for Kids Toddler Winter Base Layer Long Johns Sets for Girls Boys
- Hylaea Merino Wool Ski Socks Kids, Knee-high Warm Thermal Snowboard Skating Socks for Boys Girls Toddler
- American Trends Kids Thermal Underwear Set Ultra Soft Kids Long Johns Sets Toddler Base Layer for Boys Girls

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-01-23*