--- product_id: 353949517 title: "HEROBIKER Kids Ultra Soft Lined Thermal Underwear Boys Long Johns Top Bottom Set 2pcs Winter Skiing Warm" brand: "herobiker" price: "¥13388" currency: JPY in_stock: true reviews_count: 5 category: "Herobiker" url: https://www.desertcart.jp/products/353949517-herobiker-kids-ultra-soft-lined-thermal-underwear-boys-long-johns store_origin: JP region: Japan --- # Moisture-wicking breathability Ultra-soft fleece warmth 4-way stretch flexibility HEROBIKER Kids Ultra Soft Lined Thermal Underwear Boys Long Johns Top Bottom Set 2pcs Winter Skiing Warm **Brand:** herobiker **Price:** ¥13388 **Availability:** ✅ In Stock ## Summary > ❄️ Gear up your little hero with warmth that moves as fast as they do! ## Quick Answers - **What is this?** HEROBIKER Kids Ultra Soft Lined Thermal Underwear Boys Long Johns Top Bottom Set 2pcs Winter Skiing Warm by herobiker - **How much does it cost?** ¥13388 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/353949517-herobiker-kids-ultra-soft-lined-thermal-underwear-boys-long-johns) ## Best For - herobiker enthusiasts ## Why This Product - Trusted herobiker brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Freedom to Move:** 4-way stretch and flatlock seams ensure no chafing, just smooth, unrestricted play. - • **Stay Dry, Stay Active:** Advanced moisture-wicking fabric keeps kids sweat-free and comfortable all day. - • **Invisible Under Layers:** Slim fit design fits discreetly under any outfit—style meets function effortlessly. - • **Silky Soft Thermal Fleece:** Experience premium warmth without bulk—perfect for winter warriors. - • **Versatile Winter Essential:** Ideal for skiing, snowboarding, running, or cozy indoor days—one set, endless adventures. ## Overview HEROBIKER Kids Ultra Soft Thermal Underwear Set features a 2-piece long sleeve top and full-length bottom crafted from 90% polyester and 10% spandex with a fleece lining. Designed for superior warmth, moisture-wicking, and four-way stretch flexibility, this slim-fit thermal set offers comfort and durability for active kids during cold weather activities like skiing and running. Elastic waistbands and flatlock stitching enhance fit and prevent chafing, making it a must-have winter base layer. ## Description Our KIDS Thermal Underwear will be the best Choice for Thermal Retention in Winter 2 piece set: 1 long sleeve top + 1 full length bottom Feature: -Double layer long knit cuffs. -90% ultra-soft polyester, 10% spandex -Elastic waistband -Fleece lined moisture wicking -Full cut comfortable fit -Ultra Soft Warmth -Shrinkage controlled for lasting size and shape -Thermal knit retains body heat to keep you warm and comfy. Description: (1)Winters can get rough and cold. These thermal underwear will help you make it through. They are silky on the outside but lined with soft thermal fleece on the inside. (2)They can also be worn under your casual or formal attire such as under your jacket, sweater or hoodie without adding any bulk or visible crease lines in your clothes. (3)The waist of the pants is elastic for a comfortable snug fit. Both top and bottom are stretchy, perfect for active wear. These light-weight thermal pants make all the difference in the world. Review: A must have - My son hasn't taking these off since the snow hit! He loves the comfort and warmth. Review: خامة ممتازة - ممتازة جداً وتعطي دفء وراحة ومرونه ## Features - ULTRA SOFT & WARM FABRIC: Kids Thermal Underwear is made of premium silky soft lining for excellent comfort and warmth in cold weather - MOISTURE WICKING & BREATHABILITY: Breathable and moisture wicking fabric is perfect to keep sweat away and dry fast - EXCELLENT FLEXIBILITY FOR ANY MOVEMENT: Four way stretch compression is designed for Freedom of Movement and to keep your Body Looking Slimmer. Flatlock stitching creates a flat seam to the garment to ensure maximum comfort and prevents chafing - TOP & BOTTOM: Boys winter thermal underwear is super warm and soft on the inside and thins enough to fit under your any clothes comfortably. This thermal set definitely can be wore as an outdoor compression sports shirt - FOR ANY OCCASION: This long johns set for cold weather. Idea for all kinds of indoor/outdoor activities, such as cycling, skiing, running, snowboarding, etc ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07WP27JXZ | | Age Range Description | Kid | | Apparel Closure Type | Pull On | | Brand Name | HEROBIKER | | Collection | thermal underwear | | Colour | Black | | Customer Reviews | 4.6 out of 5 stars 622 Reviews | | Fabric Type | Fleece | | Fit Type | Regular | | Manufacturer | China | | Manufacturer Part Number | HEROBIKER | | Material type | Polyester | | Neck Style | Crew Neck | | Package Quantity | 1 | | Pattern | Solid | | Size | M | | Sleeve Type | Long Sleeve | | Style Name | Longjohns | | UPC | 792966157514 | ## Images ![HEROBIKER Kids Ultra Soft Lined Thermal Underwear Boys Long Johns Top Bottom Set 2pcs Winter Skiing Warm - Image 1](https://m.media-amazon.com/images/I/61ksce5mUkL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ A must have *by U***E on 28 January 2026* My son hasn't taking these off since the snow hit! He loves the comfort and warmth. ### ⭐⭐⭐⭐⭐ خامة ممتازة *by A***3 on 17 January 2023* ممتازة جداً وتعطي دفء وراحة ومرونه ### ⭐⭐⭐⭐⭐ Buena Cálidad *by N***Z on 27 August 2024* Muy buena calidad, buen acabado, textura suave y calientita, muy recomendable. ## Frequently Bought Together - HEROBIKER Thermal Underwear Boys Ultra Soft Fleece Lined Kids Thermals Long Johns Top Bottom Warm Set for Winter Skiing - Arctix Kids Insulated Snow Bib Overalls - Runhit Boys Thermal Underwear Set Youth Kids Long Johns Boy Base Layer Soft Thermal Pants Fleece Lined Long Sleeve Shirt --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/353949517-herobiker-kids-ultra-soft-lined-thermal-underwear-boys-long-johns](https://www.desertcart.jp/products/353949517-herobiker-kids-ultra-soft-lined-thermal-underwear-boys-long-johns) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-09-22*