--- product_id: 399624567 title: "Thermal Underwear for Kids, Boys Thermals, Long Johns Underwear, Base Layer for Cold Weather/Skiing" price: "$33.56" currency: USD in_stock: true reviews_count: 8 url: https://www.desertcart.us/products/399624567-thermal-underwear-for-kids-boys-thermals-long-johns-underwear-base store_origin: US region: United States of America --- # Moisture-wicking tech keeps kids dry Ultra-soft fleece lining for max warmth Durable poly-spandex blend with reinforced stitching Thermal Underwear for Kids, Boys Thermals, Long Johns Underwear, Base Layer for Cold Weather/Skiing **Price:** $33.56 **Availability:** ✅ In Stock ## Summary > ❄️ Stay warm, stay unstoppable—Rocky thermals for the winter warriors! ## Quick Answers - **What is this?** Thermal Underwear for Kids, Boys Thermals, Long Johns Underwear, Base Layer for Cold Weather/Skiing - **How much does it cost?** $33.56 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/399624567-thermal-underwear-for-kids-boys-thermals-long-johns-underwear-base) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** Machine washable, tough poly-spandex fabric that withstands endless adventures. - • **All-Day Warmth:** Lightweight fleece base layer that keeps kids cozy from dawn to dusk. - • **Stay-Put Design:** No slipping under bulky winter layers—comfort that moves with your kid. - • **Kid-Approved Comfort:** Soft, itch-free fleece that your little ones will actually want to wear. - • **Moisture-Wicking Power:** Sweat? No thanks. Keeps skin dry and comfy during active play. ## Overview Rocky Thermal Underwear for Kids features a fleece-lined, moisture-wicking poly-spandex blend designed to keep boys warm, dry, and comfortable under heavy winter layers. Engineered with a stay-put fit and durable stitching, these thermals are machine washable and built to endure active cold-weather play, making them the perfect base layer for skiing and extreme cold. ## 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 (White, X-Small) and other Sets at desertcart.com. Our wide selection is elegible for free shipping and free returns. 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! Review: Soft and very comfortable - Loved keep the regular temperature of the body, soft texture, nice color and size fits well for my son . ## 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 | |---------------|-------| | Care instructions | Machine Wash | | Fabric type | 90% Polyester, 10% Spandex | | Origin | Made in the USA and Imported | ## Images ![Thermal Underwear for Kids, Boys Thermals, Long Johns Underwear, Base Layer for Cold Weather/Skiing - Image 1](https://m.media-amazon.com/images/I/51fe8qhstqL.jpg) ## Available Options This product comes in different **Color, Size, Special Size Type** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ 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! ### ⭐⭐⭐⭐⭐ 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 . ### ⭐⭐⭐⭐⭐ Great thermal base layer. *by K***R on January 4, 2026* Very nice quality. Fits true to size. Perfect as a base layer. --- ## 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.us/products/399624567-thermal-underwear-for-kids-boys-thermals-long-johns-underwear-base](https://www.desertcart.us/products/399624567-thermal-underwear-for-kids-boys-thermals-long-johns-underwear-base) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-13*