--- product_id: 100525530 title: "Thermal Underwear for Men Long Johns Base Layer Fleece Lined Winter Warm" brand: "herobiker" price: "$69.79" currency: USD in_stock: true reviews_count: 13 category: "Herobiker" url: https://www.desertcart.us/products/100525530-thermal-underwear-for-men-long-johns-base-layer-fleece-lined store_origin: US region: United States of America --- # Ultra-soft fleece lining for max warmth Breathable, lightweight fabric keeps you dry 4-way stretch for unrestricted movement Thermal Underwear for Men Long Johns Base Layer Fleece Lined Winter Warm **Brand:** herobiker **Price:** $69.79 **Availability:** ✅ In Stock ## Summary > ❄️ Elevate your winter game with warmth that moves as fast as you do! ## Quick Answers - **What is this?** Thermal Underwear for Men Long Johns Base Layer Fleece Lined Winter Warm by herobiker - **How much does it cost?** $69.79 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/100525530-thermal-underwear-for-men-long-johns-base-layer-fleece-lined) ## 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 - • **Move Freely, Look Sharp:** Four-way stretch fabric and flatlock seams ensure a slim fit that moves with you, never bunching or restricting. - • **Breathe Easy in the Cold:** Advanced breathability wicks sweat away, keeping you dry and comfortable during intense outdoor activities. - • **Stay Toasty Without the Bulk:** Premium silky fleece lining traps heat while remaining lightweight—perfect for layering under your winter wardrobe. - • **Versatile Base Layer for Every Adventure:** Ideal for skiing, cycling, running, or yoga—this thermal set adapts seamlessly to your active lifestyle. - • **Effortless Care, Long-Lasting Performance:** Durable, machine-washable fabric maintains softness and fit wash after wash, ready for your next cold-weather challenge. ## Overview HEROBIKER Thermal Underwear for Men features a premium blend of 90% ultra-soft polyester and 10% spandex, offering lightweight warmth with breathable, four-way stretch fabric. Designed as a slim-fitting base layer with flatlock seams, it provides maximum comfort and flexibility for cold-weather sports and daily wear. Machine washable and durable, this fleece-lined long john set is your essential winter companion for skiing, cycling, running, and more. ## Description Item Name: outdoor sport thermal underwear set Size: M/L/XL/XXL Material: Made of 90% ultra-soft polyester 10% spandex with great breathability, Superfine sweat to keep warm Feature: keep warm, slim Application: outdoor sport, cycling, skiing, climbing, running Package Include: 1 black outdoor sports thermal underwear set Notice: All sizes are artificially measurement, the error in 1-2CM is normal the color of the picture maybe a little different from the reality which caused by many factors, for example, the pixels and your computer's screen. Review: Excellent product!! I highly recommend - This product is absolutely excellent, and a fantastic value for the price. I purchased this for my son in law because he needed something to wear under his clothes when he rides his motorcycle during the cold months, and he is obsessed with this product. Not only is the product extremely comfortable, but it’s very soft, has the perfect amount of thickness, is comfortably warm, and fits perfectly under your clothes as it “stays in place” and doesn’t bunch up under your clothes like other products do. This product is made with a quality material that is durable and stylish. The sleeve length and pants length are perfect, not too short and not too long, hugging your body precisely like it’s designed to do. I’m so happy with this product that I’m going to purchase more in different colors. I highly recommend this product and would definitely purchase this product again. Review: Good quality. - It’s good. Holds temperature of your body. But if you go to extreme cold you must wear something heavy on it, then the innersuit will support much to keep the body temperature on hold. ## Features - 🍀【ULTRA SOFT & WARM FABRIC】 Thermal Underwear is Made of Premium Silky Soft Lining for Excellent Comfort and Warmth in Cold Weather - 🍀【KEEP WARM & BREATHABILITY】Perfect for cold weather, comfy stretch software in normal thickness, breathable, lightweight but warm, works excellently during your winter activities like snowboarding for added warmth - 🍀【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 - 🍀【TOP & BOTTOM】 Men's winter thermal underwear is super warm and soft on the inside and thin enough to fit under your shirt comfortably. This thermal set definitely can be worn as an outdoor compression sports shirt - 🍀 【FOR ANY OCCASION】 HEROBIKER long johns set for cold weather. The idea for all kinds of indoor/outdoor activities, such as cycling, skiing, climbing, running, snowboarding, yoga, fitness body training, etc ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07MV896NQ | | Age Range Description | Adult | | Apparel Closure Type | Pull On | | Apparel Fabric Stretch | High Stretch | | Apparel Fabric Weight Class | Lightweight | | Best Sellers Rank | #69,680 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #7 in Men's Thermal Underwear Bottoms | | Brand Name | HEROBIKER | | Care instructions | Machine Wash | | Collection Name | Winter | | Color | Blue | | Customer Reviews | 4.6 out of 5 stars 15,566 Reviews | | Fabric Type | 90% ultra-soft polyester 10% spandex | | Fabric type | 90% ultra-soft polyester 10% spandex | | Fit Type | Athletic | | Fit to Size Sentiment | NEUTRAL | | Garment Size Country | United States | | Import Designation | Imported | | Item Type Name | Base Layer | | Manufacturer Part Number | HEROBIKER | | Material Type | Polyester | | Neck Style | Crew Neck | | Number of Items | 1 | | Occasion Type | Skiing | | Origin | Imported | | Pattern | Solid | | Product Care Instructions | Machine Wash | | Size | X-Large | | Sleeve Length Description | Long Sleeve | | Sleeve Type | Long Sleeve | | Style Name | Classic | | Style Number | MX 1001 | | UPC | 799670785682 | ## Images ![Thermal Underwear for Men Long Johns Base Layer Fleece Lined Winter Warm - Image 1](https://m.media-amazon.com/images/I/51VZDy4ek+L.jpg) ## Available Options This product comes in different **Color, Size** options. ## Questions & Answers **Q: Is this a top and bottom? shirt and pants?** A: Yes it’s a shirt and pants. You wear them uber your clothes to keep you warm. My husband says they are awesome and keeps him warm. **Q: What size should I order if my boyfriend is a large shirt but usually a small/med in underwear** A: Just my opinion, I would get a Medium-Large. Pajamas are usually big for their stated size; however, you want more of a tight fit with thermal underwear as to keep the heat in, and usually warn under regular clothing. So I would say medium. Everything fits differently, but I would say the medium would be a better choice under a large shirt. **Q: this is fleece lined?** A: It is not "fleece" material - however, the warmth is similar to that but is instead a form fitting base layer. I wear these under pants during New England winter temperatures and it is just as warm as smartwool. I also wear them under my motorcycle gear during this season too. These are a great product and worth way more than $20! **Q: I wear 36 pants L but the size chart wierd what size do i get ? the chart size 3xl that big ?im L 36 help ?** A: Im 36 waist myself but my upper body is xxl because im 6'1" so is the size i gotten and it fits snugg all the way around because its stretchy material and here in new england its really cold and im in the snow clearing team , i luv this material it keeps me warm and dry ,hope this helps ## Customer Reviews ### ⭐⭐⭐⭐⭐ Excellent product!! I highly recommend *by C***. on December 20, 2025* This product is absolutely excellent, and a fantastic value for the price. I purchased this for my son in law because he needed something to wear under his clothes when he rides his motorcycle during the cold months, and he is obsessed with this product. Not only is the product extremely comfortable, but it’s very soft, has the perfect amount of thickness, is comfortably warm, and fits perfectly under your clothes as it “stays in place” and doesn’t bunch up under your clothes like other products do. This product is made with a quality material that is durable and stylish. The sleeve length and pants length are perfect, not too short and not too long, hugging your body precisely like it’s designed to do. I’m so happy with this product that I’m going to purchase more in different colors. I highly recommend this product and would definitely purchase this product again. ### ⭐⭐⭐⭐⭐ Good quality. *by Z***N on August 5, 2026* It’s good. Holds temperature of your body. But if you go to extreme cold you must wear something heavy on it, then the innersuit will support much to keep the body temperature on hold. ### ⭐⭐⭐⭐⭐ Perfect Thermal Underwear set *by S***R on March 6, 2025* Absolutely amazing thermal underwear set. I have purchased numerous types of similar underwear recently and I keep coming back to this one. There is.not a single thing ai don't love about them. Fit, comfort, build quality, price and so much more, these are the best that I have found. The price point is also excellent. I wear these every day during the colder months, and they provide great warmth while.never being too warm or suffocating. I barely know that I ammwearong them due to the build quality, soft materials, and excellent fit. If you are desiring another layer to wear to work or for any other activities where you want a little extra warmth and comfort, do ypurself.a favor and buy a set of these. You will not regret the purchase. ## Frequently Bought Together - HEROBIKER Long Johns Thermal Underwear for Men Skiing Winter Warm Hunting Gear Fleece Lined Base Layer Set Top Bottom - Alvada Merino Wool Hiking Socks Thermal Warm Crew Winter Boot Sock For Men & Women 3 Pairs - Sireck Cold Weather Balaclava Ski Mask, Water Resistant and Windproof Fleece Face Thermal , Hunting Cycling Motorcycle Neck Warmer Hood Winter Gear for Men Women --- ## 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/100525530-thermal-underwear-for-men-long-johns-base-layer-fleece-lined](https://www.desertcart.us/products/100525530-thermal-underwear-for-men-long-johns-base-layer-fleece-lined) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-08-22*