---
product_id: 383630500
title: "100% Merino Wool Base Layer Men Set - Thermal Underwear for Men Long Johns | Lite, Midweight, Heavyweight Options, Naturally Odor-Resistant, Breathable Cold Weather Top Bottom, Ideal for Hiking, Skiing"
brand: "merino.tech"
price: "152215CFA"
currency: XOF
in_stock: true
category: "Merino.Tech"
url: https://www.desertcart.sn/products/383630500-100-merino-wool-base-layer-men-set-thermal-underwear-men
store_origin: SN
region: Senegal
---

# Free $21 Merino Wool Hiking Socks 250 g/m² Midweight Merino Wool Natural Temperature Regulation 100% Merino Wool Base Layer Men Set - Thermal Underwear for Men Long Johns | Lite, Midweight, Heavyweight Options, Naturally Odor-Resistant, Breathable Cold Weather Top Bottom, Ideal for Hiking, Skiing

**Brand:** merino.tech
**Price:** 152215CFA
**Availability:** ✅ In Stock

## Summary

> 🔥 Elevate your base layer game with Merino.tech – where performance meets luxury 🧗‍♂️

## Quick Answers

- **What is this?** 100% Merino Wool Base Layer Men Set - Thermal Underwear for Men Long Johns | Lite, Midweight, Heavyweight Options, Naturally Odor-Resistant, Breathable Cold Weather Top Bottom, Ideal for Hiking, Skiing by merino.tech
- **How much does it cost?** 152215CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/383630500-100-merino-wool-base-layer-men-set-thermal-underwear-men)

## Best For

- merino.tech enthusiasts

## Why This Product

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

## Key Features

- • **Stay Fresh, Stay Dry:** Superior moisture-wicking and odor-resistant properties keep you dry and confident during any activity.
- • **Durability Meets Style:** Slim fit, flatlock seams, and tagless design ensure no chafing, lasting shape, and sleek look for everyday wear.
- • **Versatile Weight Options:** Choose from lightweight (165 g/m²), midweight (250 g/m²), or heavyweight (320 g/m²) for perfect seasonal adaptability.
- • **Unmatched Comfort All Day:** 100% superfine 17.5 micron Merino wool for itch-free softness and breathable warmth.
- • **Bonus Hiking Socks Included:** Step up your outdoor game with premium Merino wool socks valued at $21, included free with your set.

## Overview

The Merino.tech Merino Wool Base Layer Mens Set offers premium 100% superfine Merino wool in three weight classes (light, mid, heavy) designed for superior temperature regulation, moisture management, and odor resistance. This slim-fit thermal underwear set includes a top and bottom crafted for all-day comfort with no itch, plus a free pair of $21 value Merino wool hiking socks. Ideal for active professionals and outdoor enthusiasts seeking versatile, durable, and stylish base layers that perform across seasons.

## Description

Buy 100% Merino Wool Base Layer Men Set - Thermal Underwear for Men Long Johns (Medium, 250 Black) and other Active Base Layers at desertcart.com. Our wide selection is elegible for free shipping and free returns.

## Features

- Midweight: Mens Merino Base Layer Available in: Lightweight = 165 g/m², Midweight = 250 g/m², Heavyweight = 320 g/m². Free Merino Wool Hiking Socks ($21 Value) – Package includes Midweight Merino wool base layer mens top and wool men long johns 250 g/m² + Merino Wool Hiking Socks. Cool Packaging. Makes A Great Gift.
- Super Soft & Comfortable: 100% Superfine 17.5 Micron merino wool base layer set mens provides all day comfort and no itch! Merino wool long underwear men set was designed for daily wear without rubbing, overheating, or bunching of regular cotton.
- Moisture Wicking & Odor Resistant: Natural wicking and odor-resistant properties of merino wool thermal underwear allow it to absorb moisture better than any other fabric, keeping you dry and fresh.
- Breathable – For longer lasting wear, hand wash and lay flat to air dry. Mens wool long johns sets naturally regulate body temperature to keep you comfortable all year round.
- Zero Worries: Every we make merino wool base layer top mens and long johns are backed by our Merino.tech Promise - ensuring you're 100% happy with every Merino.tech purchase. For best results hand wash and lay flat to dry

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09C4WJ38S |
| ASIN  | B0B68BHX2P |
| Age Range Description | Adult |
| Apparel Closure Type | Pull On |
| Apparel Fabric Stretch | Medium Stretch |
| Apparel Fabric Weight Class | Medium Weight |
| Best Sellers Rank | #29,229 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #6 in Men's Base Layers |
| Brand Name | Merino.tech |
| Collection Name | All |
| Color | . 250 Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (3,822) |
| Date First Available  | July 11, 2022 |
| Department  | mens |
| Fabric Type | 100% Superfine Merino Wool |
| Fit Type | Regular |
| Fit to Size Sentiment | Fits True To Size |
| Garment Size Country | United States |
| Item Type Name | Base Layer Set |
| Manufacturer Part Number | MST-250 |
| Material Type | 100% Superfine Merino Wool |
| Neck Style | Crew Neck |
| Number of Items | 1 |
| Package Quantity | 1 |
| Pattern | Solid |
| Product Care Instructions | Machine Wash (Delicate Cycle), Hand Wash Recommended |
| Size | Medium |
| Sleeve Length Description | Long Sleeve |
| Sleeve Type | Long Sleeve |
| Style Name | Modern |
| Style Number | MST-250 |

## Images

![100% Merino Wool Base Layer Men Set - Thermal Underwear for Men Long Johns | Lite, Midweight, Heavyweight Options, Naturally Odor-Resistant, Breathable Cold Weather Top Bottom, Ideal for Hiking, Skiing - Image 1](https://m.media-amazon.com/images/I/61ORF+kAOHL.jpg)
![100% Merino Wool Base Layer Men Set - Thermal Underwear for Men Long Johns | Lite, Midweight, Heavyweight Options, Naturally Odor-Resistant, Breathable Cold Weather Top Bottom, Ideal for Hiking, Skiing - Image 2](https://m.media-amazon.com/images/I/71fdtg4knHL.jpg)
![100% Merino Wool Base Layer Men Set - Thermal Underwear for Men Long Johns | Lite, Midweight, Heavyweight Options, Naturally Odor-Resistant, Breathable Cold Weather Top Bottom, Ideal for Hiking, Skiing - Image 3](https://m.media-amazon.com/images/I/81Vl+54-s0L.jpg)
![100% Merino Wool Base Layer Men Set - Thermal Underwear for Men Long Johns | Lite, Midweight, Heavyweight Options, Naturally Odor-Resistant, Breathable Cold Weather Top Bottom, Ideal for Hiking, Skiing - Image 4](https://m.media-amazon.com/images/I/91yV93yyb9L.jpg)
![100% Merino Wool Base Layer Men Set - Thermal Underwear for Men Long Johns | Lite, Midweight, Heavyweight Options, Naturally Odor-Resistant, Breathable Cold Weather Top Bottom, Ideal for Hiking, Skiing - Image 5](https://m.media-amazon.com/images/I/81dqxCarGoL.jpg)

## Available Options

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

## Questions & Answers

**Q: Won't merino wool feel itchy? And what does 17.5 micron mean?**
A: 17.5 micron superfine merino fibers are finer than human hair — too fine to feel itchy, even on sensitive skin. Standard wool (25+ microns) causes irritation; this doesn't. OEKO-TEX certified, tested against 100+ harmful substances.

**Q: How do I wash and dry it to keep it looking new ? Will it shrink or lose shape?**
A: Machine wash cold max 30°C, delicate cycle, inside out. Lay flat to dry — tumble drying permanently damages merino fibers. Store clean and dry; keep merino in sealed bags to prevent moths. Wear 3–5 days between washes — merino resists odor naturally

**Q: Which weight should I choose — 165, 250, or 320 g/m²?**
A: 165 g/m² — active pursuits, travel, spring/summer, 40–60°F. 250 g/m² — cold weather, most outdoor activities, 25–45°F. 320 g/m² — frost and low activity, 10–35°F, extreme conditions. Rule: the higher the activity level — the lighter the weight.

**Q: Where does the merino wool sourced from and is this product certified?**
A: Our products are made from Australian merino wool, RWS certified — independent farm audit confirming animal welfare and land management standards. Every component tested against 100+ harmful substances under OEKO-TEX Standard 100.

**Q: Does it fit true to size?**
A: Choose your regular size if you prefer slim fit. For more relaxed fit order size up

## Frequently Bought Together

- Merino.tech Merino Wool Base Layer Mens Set - Heavyweight, Midweight, Lite Merino Wool Thermal Underwear For Men Top, Bottom
- Merino Wool Base Layer Mens Bottom Pants 100% Merino Wool Heavyweight, Midweight, Lite Thermal Underwear Long Johns and Socks
- Merino.tech Merino Wool Base Layer - Mens 100% Merino Wool Long Sleeve Thermal Shirts Heavyweight, Midweight, Lite with Socks

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**Shop now:** [https://www.desertcart.sn/products/383630500-100-merino-wool-base-layer-men-set-thermal-underwear-men](https://www.desertcart.sn/products/383630500-100-merino-wool-base-layer-men-set-thermal-underwear-men)

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-07-26*