---
product_id: 358166794
title: "Thermal Underwear for Men Ultra Soft, Long Johns Base Layer Fleece Lined, Active Mens Thermal Underwear Set wtih TOP & Bottom（Black M）"
brand: "weerti"
price: "S/.419"
currency: PEN
in_stock: true
reviews_count: 5
category: "Weerti"
url: https://www.desertcart.pe/products/358166794-thermal-underwear-for-men-ultra-soft-long-johns-base-layer
store_origin: PE
region: Peru
---

# Locks in body heat all day Ultra-soft fleece lining comfort 4-way stretch for full mobility Thermal Underwear for Men Ultra Soft, Long Johns Base Layer Fleece Lined, Active Mens Thermal Underwear Set wtih TOP & Bottom（Black M）

**Brand:** weerti
**Price:** S/.419
**Availability:** ✅ In Stock

## Summary

> ❄️ Elevate your cold-weather game with warmth that moves with you!

## Quick Answers

- **What is this?** Thermal Underwear for Men Ultra Soft, Long Johns Base Layer Fleece Lined, Active Mens Thermal Underwear Set wtih TOP & Bottom（Black M） by weerti
- **How much does it cost?** S/.419 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/358166794-thermal-underwear-for-men-ultra-soft-long-johns-base-layer)

## Best For

- weerti enthusiasts

## Why This Product

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

## Key Features

- • **All-Day Thermal Lock:** Stay warm from dawn to dusk with advanced heat retention that outperforms ordinary base layers.
- • **Unrestricted Movement:** Engineered with four-way stretch fabric to keep you agile and comfortable—no bunching, no pinching.
- • **Cloud-Like Fleece Comfort:** Experience premium softness that pampers your skin, making cold days feel cozy and luxurious.
- • **Sweat-Wicking & Odor Control:** Breathable fabric that keeps you dry and fresh whether at the office, gym, or outdoor adventures.
- • **Versatile Layering Essential:** Perfect as a sleek base layer or stylish loungewear—your go-to for winter warmth and effortless style.

## Overview

The WEERTI Thermal Underwear Set for men features a fleece-lined, lightweight base layer with four-way stretch fabric that locks in heat while wicking moisture and controlling odor. Designed for active professionals, it offers a slim, flexible fit ideal for layering or solo wear, ensuring all-day warmth and comfort in cold conditions.

## Description

Stay warm and comfortable with our mens long johns set, the perfect base layer men cold weather needs. This men's thermal underwear top and bottom set features ultra-soft fleece lining that locks in body heat for lasting warmth without bulk. Made with four-way stretch fabric, this men thermal set delivers a flexible fit that moves with you—no restriction, no bunching—so you can stay active all day. Breathable material quickly wicks away sweat and helps control odor, keeping you dry and fresh whether at home, office, gym, or outdoors. Lightweight yet insulating, these mens long underwear pieces are ideal for layering under any outfit or wearing as cozy pajamas. Durable, soft, and versatile, they’re built to keep you warm, dry, and comfortable through every cold-weather moment.

Review: Warm, Snug, and Better Than I Expected - I grabbed these WEERTI thermal long johns for cold days and they’ve honestly become my default base layer once the temps drop. The inside fleece is very soft and cozy, and the fabric has enough stretch that I can move around, bend, and sit without feeling restricted or like the seams are fighting me. They fit close to the body, more like a second skin, which helps keep warmth in, but it also means you may want to size up if you’re between sizes or don’t like anything too tight. I’ve worn them under jeans and work pants outside and also just as loungewear at home, and they’ve kept me warm without getting overly sweaty thanks to the moisture‑wicking fabric. ​ They’re not perfect, though. The waistband and cuffs can feel a little snug after a full day, and if you run hot or spend a lot of time indoors, you might find yourself getting warmer than you’d like. The material is synthetic, so if you’re used to merino wool base layers, this won’t feel as “premium,” but for the price it’s hard to complain. Overall, these are a solid, comfortable option for everyday winter wear, especially if you just need something dependable for walking the dog, commuting, or working outside in the cold. ​
Review: Great Quality and Keeps You Warm - The fabric is soft, comfortable, and fits nicely on the body.

## Features

- All-Day Warmth: These long johns for men thermal lock in body heat for lasting warmth, keeping you comfortable through cold days as your reliable base layer all season long.
- Ultra-Soft Fleece: Made with premium fleece lining, this mens thermals top and bottom set provides a soft feel on the skin and lasting comfort from morning to night.
- Flexible Fit: Made with four-way stretch fabric, these long underwear mens deliver full mobility and comfort with no restriction or bunching, keeping you warm in all your activities.
- Dry Comfort Anywhere: These thermals for men are made of breathable fabric that quickly wicks away sweat and controls odor, keeping you dry and comfortable at home, office, gym, or outdoors.
- Layering Essential: This men's thermal underwear top and bottom set is a must-have base layer for cold weather. Layer under any outfit or wear as cozy pajamas for all-day warmth and comfort.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B088K6XSJ1 |
| Apparel Closure Type | Pull On |
| Apparel Fabric Stretch | High Stretch |
| Apparel Fabric Weight Class | Lightweight |
| Best Sellers Rank | #1,178,477 in Clothing & Accessories ( See Top 100 in Clothing & Accessories ) #3,137 in Men's Base Layers & Compression #8,029 in Men's Skiing Clothing #19,954 in Men's Innerwear |
| Brand Name | WEERTI |
| Collection | Winter |
| Colour | Black |
| Customer Reviews | 4.6 out of 5 stars 1,448 Reviews |
| Fabric Type | Fleece,Polyester,Spandex,Wool |
| Fit Type | Slim |
| Fit to Size Sentiment | Positive |
| Garment Size Country | United States |
| Manufacturer | WEERTI |
| Material type | Polyester, Spandex |
| Neck Style | Crew Neck |
| Pattern | Solid |
| Product Care Instructions | Machine Wash |
| Size | M |
| Sleeve Type | Long Sleeve |
| Style Name | Classic |
| Unit Count | 1 Count |
| number-of-items | 2 |

## Images

![Thermal Underwear for Men Ultra Soft, Long Johns Base Layer Fleece Lined, Active Mens Thermal Underwear Set wtih TOP & Bottom（Black M） - Image 1](https://m.media-amazon.com/images/I/51-lXF3lDSL.jpg)

## Questions & Answers

**Q: Do they slide down**
A: Mine do not move at all, I have 3 pair and wear them daily. These are extremely comfortable as well however I would order a size larger than normal.

**Q: Do they have tag? I don't like the labels on clothes that tag and irritate my skin.**
A: No, they don't have tags

**Q: Do these long johns fit Regular fit or do they stretch pretty good?**
A: Regular fit!

**Q: How many ounces does an xtralarge size weigh ?**
A: 7.6 ozs

## Customer Reviews

### ⭐⭐⭐⭐⭐ Warm, Snug, and Better Than I Expected
*by S***N on 4 March 2026*

I grabbed these WEERTI thermal long johns for cold days and they’ve honestly become my default base layer once the temps drop. The inside fleece is very soft and cozy, and the fabric has enough stretch that I can move around, bend, and sit without feeling restricted or like the seams are fighting me. They fit close to the body, more like a second skin, which helps keep warmth in, but it also means you may want to size up if you’re between sizes or don’t like anything too tight. I’ve worn them under jeans and work pants outside and also just as loungewear at home, and they’ve kept me warm without getting overly sweaty thanks to the moisture‑wicking fabric. ​ They’re not perfect, though. The waistband and cuffs can feel a little snug after a full day, and if you run hot or spend a lot of time indoors, you might find yourself getting warmer than you’d like. The material is synthetic, so if you’re used to merino wool base layers, this won’t feel as “premium,” but for the price it’s hard to complain. Overall, these are a solid, comfortable option for everyday winter wear, especially if you just need something dependable for walking the dog, commuting, or working outside in the cold. ​

### ⭐⭐⭐⭐⭐ Great Quality and Keeps You Warm
*by M***Y on 17 April 2026*

The fabric is soft, comfortable, and fits nicely on the body.

### ⭐⭐⭐⭐⭐ Comfortable and keeps you warm
*by V***J on 19 May 2026*

Comfortable and keeps you warm. The material is also of very good quality.

## Frequently Bought Together

- WEERTI Thermal Underwear for Men Long Johns with Fleece Lined, Base Layer Men Cold Weather Top Bottom
- Alvada Merino Wool Hiking Socks Thermal Warm Crew Winter Boot Sock For Men & Women 3 Pairs
- Thermajohn Long Johns Thermal Underwear for Men Fleece Lined Base Layer Set for Cold Weather

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*Product available on Desertcart Peru*
*Store origin: PE*
*Last updated: 2026-09-29*