--- product_id: 744711956 title: "MAXHEAT Mens Thermal Underwear Long Johns Set with Fleece Lined" brand: "fitextreme" price: "$20.53" currency: USD in_stock: false reviews_count: 5 url: https://www.desertcart.us/products/744711956-maxheat-mens-thermal-underwear-long-johns-set-with-fleece-lined store_origin: US region: United States of America --- # MAXHEAT Mens Thermal Underwear Long Johns Set with Fleece Lined **Brand:** fitextreme **Price:** $20.53 **Availability:** ❌ Out of Stock ## Quick Answers - **What is this?** MAXHEAT Mens Thermal Underwear Long Johns Set with Fleece Lined by fitextreme - **How much does it cost?** $20.53 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/744711956-maxheat-mens-thermal-underwear-long-johns-set-with-fleece-lined) ## Best For - fitextreme enthusiasts ## Why This Product - Trusted fitextreme brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description PLEASE REFER TO IMAGE of ACTUAL MEASUREMENT on Left Side in advance of your purchase Please pick proper option you want (Ex. If you need bottom only, please choose bottom only option) FBA Shipment is Available on the item marked as (Fulfilled by desertcart) If you have any problem on your item or delivery, Please Contact us via Email in advance of claim on desertcart, Then we will provide you reasonable solution quickly to solve your problem FITEXTREME is One of most Popular Underwear Brands in South Korea Reasonable Price and Satisfactory Quality, Made of Fine and Optimum Material for each Purpose of Clothes FITEXTREME Thermal Underwear will be the best Choice for Thermal Retention in Winter FITEXTREME is officially registered Trade mark (Reg. No. 5337089 US PTO) FITEXTREME is sole official Seller who sell FITEXTREME Brand item ## Features - FLEECELINING & ACTIVE PERFORMANCE - Made of Premium Silky Soft Fleece Lining, Fleece material provides Ideal warmth Performance for Indoor & Outdoor Activities, Running and Hiking, Excellent Active Wear for Sports and Movement, Light weight and Enhanced Durability, Individually Packed Well for Protection - DRY & WICKING PERFORMANCE - Made of Fine fabric for Optimized Quick Dry & Moisture Wicking Performance, Can be worn all day long in Fresh Condition, Excellent Breathability to provide Optimized Ventilation and Air Circulation - 4 WAY STRETCH SPAN & FLATLOCK STITCHING - 4 Way Stretch Span allow you Great freedom of movement, Compression Fit to keep your Body Looking Slimmer, Suitable for Sports and Outdoor Activities, Flatlock stitching for Friction Free to eliminate Annoying itching - ORIGINAL FITEXTREME PERFORMANCE CLOTHING - FITEXTREME is officially registered Trade mark (Reg. No. 5337089 US PTO), FITEXTREME is sole official Seller who sell FITEXTREME Brand item ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B017SJK76C | | Date First Available | 26 March 2019 | | Department | Men | | Is Discontinued By Manufacturer | No | | Item Model Number | LYSB017SJK76C-SPRTSEQIP | | Item Weight | 431 g | | Package Dimensions | 27.3 x 23.29 x 4.7 cm; 431 g | ## Images ![MAXHEAT Mens Thermal Underwear Long Johns Set with Fleece Lined - Image 1](https://m.media-amazon.com/images/I/611r2ILgx7L.jpg) ![MAXHEAT Mens Thermal Underwear Long Johns Set with Fleece Lined - Image 2](https://m.media-amazon.com/images/I/51jJ4TvXrlL.jpg) ![MAXHEAT Mens Thermal Underwear Long Johns Set with Fleece Lined - Image 3](https://m.media-amazon.com/images/I/61hVZC7G2KL.jpg) ![MAXHEAT Mens Thermal Underwear Long Johns Set with Fleece Lined - Image 4](https://m.media-amazon.com/images/I/71Fz5wSAbKL.jpg) ![MAXHEAT Mens Thermal Underwear Long Johns Set with Fleece Lined - Image 5](https://m.media-amazon.com/images/I/71OoNga3gVL.jpg) ## Available Options This product comes in different **Colour, Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Comfy and Warm - Fit Well *by on Reviewed in the United States 31 January 2020* Got these for an upcoming ski trip and immediately tried them on when they arrived. I am getting another pair now. Im 5"10, 170lbs, so pretty average size. Medium fits me perfectly. They are bit snug (which i want for a base layer) and very comfortable. The neck/collar is a little big, but no different than some of the v-neck style shirts today. The exterior has a spandex/lyra feel while the inside has a microfeecy kind of feel. They feel a bit thicker than a regular base layer and seem to be pretty warm. Will write an update after my ski trip and getting to use them in the wild, but I am pretty impressed thus far! 01-31-2002-23-20Returned from my ski trip. These are great! I got a 2nd pair after my previous post. These are warm and comfy and layer well. It was -11 for several days and I was fine with these and thin/waterproof shell pants on my bottom half. For my top half, I layered with a light performance jersey and light wind breaker with an outer shell. I never felt cold. I wore these as my base layer for 2 days of active skiing and they didnt stink after removal. No issues with stitching or quality thus far and i have washed them now a few times. These seem like a great base layer for a wide range of winter temps! ### ⭐⭐⭐⭐ Good product but interesting... *by on Reviewed in the United States 7 February 2020* First of all the material is fantastic. It wicks moisture as expected and keeps me feeling warm and dry while skiing. I normally buy thermal underwear to fit snug. I believe it works better that way. I purchased top and bottom in the extra large (XL). The top fits just the way I like it. It is long enough to cover my waist and some of my butt. The bottoms are the interesting part. The legs have extra material to cover my ankles but the top including the waist band seems short on material. In other words I have to pull them up into my crotch so the waist band reaches my waist. It's not uncomfortable but they did ride down some during skiing. The material in the waist area does seem equal to that of the legs. Hard to describe and by the way, the labels are in Chinese. I wasn't sure how to wash them but I assumed washing and line drying to be the best practice. I will buy them again but perhaps an XXL in the pants. ### ⭐⭐⭐⭐⭐ Best Base Layer on the Market (not for Dad bods) *by on Reviewed in the United States 22 January 2020* For everyone concerned with the size let me clear it up. I am 5ft 8 185 and the large (m100) for me perfectly! These long underwear are meant and should fit very tightly, like a wet suit. They also create warmth by you moving around. Thats how they are designed. I wear them under a cross country racing suit on extremely cold -10 to -20f and after the first mile I am toasty warm. They may feel cold when you first go outside but that’s ok start moving! They are also NOT designed for a “dad bod” . So if that’s your body type I would suggest a thicker and looser long underwear. If you are a x-ski racer, alpine racer, winter runner, fat biker or winter hiker I would highly recommend these long underwear. I live in MN where winter temps can be brutal and these are my go to base layer every time. ## Frequently Bought Together - FITEXTREME MAXHEAT Mens Thermal Underwear Long Johns Set with Fleece Lined - ALPIDEX Functional Wear Thermal Underwear Men Breathable Quick Drying Warm Base Layer Mens Cold Weather Set Long Johns --- ## 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/744711956-maxheat-mens-thermal-underwear-long-johns-set-with-fleece-lined](https://www.desertcart.us/products/744711956-maxheat-mens-thermal-underwear-long-johns-set-with-fleece-lined) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-09-19*