---
product_id: 539421057
title: "Men's Functional Underwear"
brand: "alpidex"
price: "£31.02"
currency: GBP
in_stock: null
reviews_count: 13
category: "Alpidex"
url: https://www.desertcart.co.uk/products/539421057-mens-functional-underwear
store_origin: GB
region: Great Britain
---

# Quick-drying performance Extra flat seams for comfort Breathable & heat-regulating Men's Functional Underwear

**Brand:** alpidex
**Price:** £31.02
**Availability:** ❌ Out of Stock

## Summary

> ❄️ Elevate your winter game with warmth that moves with you!

## Quick Answers

- **What is this?** Men's Functional Underwear by alpidex
- **How much does it cost?** £31.02 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/539421057-mens-functional-underwear)

## Best For

- alpidex enthusiasts

## Why This Product

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

## Key Features

- • **Move Freely All Day:** Extra flat seams ensure zero chafing and seamless comfort under any outfit, from jeans to activewear.
- • **Sleek & Invisible Fit:** Streamlined design in versatile black-grey or black-red, fitting snugly without bulk—perfect for layering or solo wear.
- • **Effortless Care & Durability:** High-quality polyamide blend resists stretching and dries lightning fast, ready for your next adventure.
- • **Stay Warm Without Overheating:** Innovative overlapping inserts optimize airflow to keep you perfectly balanced between cozy and cool.
- • **Versatility for Every Winter Moment:** Whether hitting the slopes, walking the dog, or exploring festive markets, this set adapts to your lifestyle.

## Overview

The ALPIDEX Men's Thermal Underwear Set combines breathable, quick-drying fabric with a high-stretch polyamide blend to deliver lasting warmth and comfort. Designed with extra flat seams and overlapping inserts, it prevents overheating while ensuring a sleek, invisible fit under any outfit. Available in multiple sizes and colors, this durable set is perfect for winter sports, outdoor activities, or everyday cold-weather wear.

## Description

Shop ALPIDEX Men's Thermal Underwear, Functional Thermal Underwear Set - breathable, warming and quick-drying, Size:S/M, Colour:Black-Grey. Free delivery and returns on all eligible orders.

Review: They fit snugly as the material has elasticated properties - I was worried they wouldn't fit as I ordered L\XL I am 5ft 9in and as the material stretches so I have just "scrunched up" the legs a bit they would easily fit someone over 6ft The top fits snugly I am a 42inch chest but again it would anyone between 38-46 at a guess I have had them on for 10 minutes now. and they definitely make a huge difference to how warm you feel might be taking off my jumper in a minute!
Review: Roasting hot - The fit on these is pretty good, trousers to tend to ride down a little if you're moving too much. I read another reveiwer stating similar problems, however, that reveiwer also reported them making them colder while wearing. I cannot agree with that sentiment at all, i find them very warm, if anything, too warm. Even though i've only been using them for a bit of working outdoors in the winter, i've had to take them off a few times just to cool down.

## Features

- ❄ BREATHABLE ► Overlapping inserts provide for air circulation and heat regulation. The breathable material prevents cooling off and over heating
- ❄ PLEASANT ► Extra flat seams provide comfort and freedom of movement, even under jeans and pullover * Material: 70% polyamide, 25% polyester, 5% elastane
- ❄ VERSATILE ► This functional underwear not only keeps you warm while playing winter sports but also when taking the dog out or during a visit to a Christmas market
- ❄ INVISIBLE ► The set consisting of trousers and long-sleeve t-shirt is not bulky and is available in two colours: Black-Grey and Black-Red, as well as in the sizes S/M, L/XL and 2XL/3XL
- ❄ ROBUST ► The underwear is easy to care for and dries quickly. Thanks to the polyamide component, the material does not become stretched out, even after multiple rounds of washing and wearing

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07V3MVRQS |
| Apparel Fabric Stretch | High Stretch |
| Apparel Fabric Weight Class | Lightweight |
| Best Sellers Rank | 1,110,223 in Fashion ( See Top 100 in Fashion ) 457 in Men's Thermal Sets 520 in Men's Thermal Tops |
| Brand Name | ALPIDEX |
| Closure Type | Pull On |
| Colour | Black-grey |
| Country Of Origin | China |
| Customer Reviews | 4.4 4.4 out of 5 stars (3,247) |
| Fabric Type | polyester |
| Fit Type | soft, flexible |
| Fit to Size Sentiment | Positive |
| Garment Size Country | United States |
| Item Type Name | Briefs |
| Manufacturer | ALPIDEX |
| Manufacturer Part Number | 15100_S/M Black-Grey |
| Material Type | Polyester |
| Model Number | 15100_S/M Black-Grey |
| Neck Style | Round Neck |
| Number of Items | 2 |
| Occasion Type | Sports |
| Pattern | Solid |
| Product Care Instructions | Machine Wash |
| Season and Collection Year | Winter |
| Size | S-M |
| Sleeve Type | Long Sleeve |
| Style Name | Sporty |
| item-package-quantity | 1 |

## Images

![Men's Functional Underwear - Image 1](https://m.media-amazon.com/images/I/61vPLGkWXBL.jpg)
![Men's Functional Underwear - Image 2](https://m.media-amazon.com/images/I/61kfNdgQY-L.jpg)
![Men's Functional Underwear - Image 3](https://m.media-amazon.com/images/I/71GQIw6ouUL.jpg)
![Men's Functional Underwear - Image 4](https://m.media-amazon.com/images/I/61+uLFviSQL.jpg)
![Men's Functional Underwear - Image 5](https://m.media-amazon.com/images/I/610OCEZGDML.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ They fit snugly as the material has elasticated properties
*by P***L on 9 December 2020*

I was worried they wouldn't fit as I ordered L\XL I am 5ft 9in and as the material stretches so I have just "scrunched up" the legs a bit they would easily fit someone over 6ft The top fits snugly I am a 42inch chest but again it would anyone between 38-46 at a guess I have had them on for 10 minutes now. and they definitely make a huge difference to how warm you feel might be taking off my jumper in a minute!

### ⭐⭐⭐⭐⭐ Roasting hot
*by A***I on 31 March 2020*

The fit on these is pretty good, trousers to tend to ride down a little if you're moving too much. I read another reveiwer stating similar problems, however, that reveiwer also reported them making them colder while wearing. I cannot agree with that sentiment at all, i find them very warm, if anything, too warm. Even though i've only been using them for a bit of working outdoors in the winter, i've had to take them off a few times just to cool down.

### ⭐⭐⭐⭐ too small
*by G***R on 4 January 2021*

It was like putting on a wet suite to go diving. So tight <I am in my 80s and had a job to get the long Johns on!! They are warm, But as usual with any of theses items, the sleeves are too short and the legs are too long.. good lock. I would not buy them again. Not worth sending back !!!

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**Shop now:** [https://www.desertcart.co.uk/products/539421057-mens-functional-underwear](https://www.desertcart.co.uk/products/539421057-mens-functional-underwear)

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*Product available on Desertcart Great Britain*
*Store origin: GB*
*Last updated: 2026-04-26*