---
product_id: 23711446
title: "FITEXTREME MAXHEAT Mens Thermal Underwear Long Johns Set with Fleece Lined"
brand: "fitextreme"
price: "€ 26.20"
currency: EUR
in_stock: true
reviews_count: 13
category: "Fitextreme"
url: https://www.desertcart.pt/products/23711446-fitextreme-maxheat-mens-thermal-underwear-long-johns-set-with-fleece
store_origin: PT
region: Portugal
---

# Quick-dry & moisture-wicking fabric Premium fleece lining for max warmth 4-way stretch for ultimate mobility FITEXTREME MAXHEAT Mens Thermal Underwear Long Johns Set with Fleece Lined

**Brand:** fitextreme
**Price:** € 26.20
**Availability:** ✅ In Stock

## Summary

> 🔥 Elevate your base layer game — warmth, stretch, and freshness in one sleek package!

## Quick Answers

- **What is this?** FITEXTREME MAXHEAT Mens Thermal Underwear Long Johns Set with Fleece Lined by fitextreme
- **How much does it cost?** € 26.20 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/23711446-fitextreme-maxheat-mens-thermal-underwear-long-johns-set-with-fleece)

## Best For

- fitextreme enthusiasts

## Why This Product

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

## Key Features

- • **All-Day Freshness:** Advanced moisture-wicking tech keeps you dry and comfortable from morning hikes to evening runs.
- • **Engineered for Endurance:** Lightweight yet durable design withstands intense activity and repeated washes without losing shape.
- • **Stay Toasty, Stay Active:** Silky soft fleece lining locks in heat without bulk, perfect for winter warriors and outdoor pros.
- • **Move Freely, Perform Fully:** 4-way stretch fabric and flatlock stitching deliver frictionless comfort and a sleek, slimming fit.
- • **Official FITEXTREME Quality:** Trademarked performance gear trusted by thousands, ensuring authenticity and premium craftsmanship.

## Overview

The FITEXTREME MAXHEAT Men's Thermal Underwear Long Johns Set features premium fleece lining for superior warmth, quick-dry and moisture-wicking fabric for all-day comfort, and 4-way stretch with flatlock stitching for unrestricted movement and durability. Ideal for active outdoor use in cold climates, this officially trademarked base layer combines performance and comfort to keep you warm and fresh during winter sports and daily wear.

## Description

Buy FITEXTREME MAXHEAT Mens Thermal Underwear Long Johns Set with Fleece Lined Grey S and other Bottoms at desertcart.com. Our wide selection is elegible for free shipping and free returns.

Review: Comfy and Warm - Fit Well - 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! 01-31-20 02-23-20 Returned 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!
Review: Warm but Runs Small - Extremely warm and comfortable—perfect for my trip to Alaska. Note that it runs small, so I recommend ordering one size up for the best fit. High-quality material and well-made, keeps you cozy in freezing temperatures

## 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  | B075SYJ8M2 |
| Best Sellers Rank | #67,557 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #7 in Men's Thermal Underwear Union Suits |
| Customer Reviews | 4.4 4.4 out of 5 stars (5,036) |
| Date First Available  | November 10, 2015 |
| Department  | mens |

## Images

![FITEXTREME MAXHEAT Mens Thermal Underwear Long Johns Set with Fleece Lined - Image 1](https://m.media-amazon.com/images/I/31p3w5aMuPL.jpg)
![FITEXTREME MAXHEAT Mens Thermal Underwear Long Johns Set with Fleece Lined - Image 2](https://m.media-amazon.com/images/I/41C1rxX-4uL.jpg)
![FITEXTREME MAXHEAT Mens Thermal Underwear Long Johns Set with Fleece Lined - Image 3](https://m.media-amazon.com/images/I/41Qijel1LGL.jpg)
![FITEXTREME MAXHEAT Mens Thermal Underwear Long Johns Set with Fleece Lined - Image 4](https://m.media-amazon.com/images/I/41lRf5XzVKL.jpg)
![FITEXTREME MAXHEAT Mens Thermal Underwear Long Johns Set with Fleece Lined - Image 5](https://m.media-amazon.com/images/I/51-n7J9o0rL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Comfy and Warm - Fit Well
*by B***G on January 31, 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! 01-31-20 02-23-20 Returned 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!

### ⭐⭐⭐⭐⭐ Warm but Runs Small
*by D***I on August 19, 2025*

Extremely warm and comfortable—perfect for my trip to Alaska. Note that it runs small, so I recommend ordering one size up for the best fit. High-quality material and well-made, keeps you cozy in freezing temperatures

### ⭐⭐⭐⭐ Sizing difference makes a real good set worse
*by I***N on January 30, 2019*

I am a 6'1 220 lb guy and i ordered a Large based on the waist measurements. The bottom of the set is wonderful! The material is stretchy and soft and it seems to keep heat pretty well, but when in a warm environment it doesnt run too hot. They also fit really well.I would def get a Large bottom of this set again. My issue is the top. The neckline is weird, it seems to go down my back more than i would like. I am fine with how low it is but it seems cut weird. The sleeves are really small too. They ride up on my arms a lot. The chest is pretty tight and the shoulders are real tight. The material is soft and comfortable though, and i could see myself wearing it if the fit works. I will try to order the set seperately next time. and getting a Tesla also to compare

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-01-24*