---
product_id: 256223717
title: "100% Merino Wool Base Layer Mens Pants - Thermal Underwear Long Johns"
brand: "merino.tech"
price: "€ 126.34"
currency: EUR
in_stock: true
reviews_count: 13
category: "Merino.Tech"
url: https://www.desertcart.sk/products/256223717-100-merino-wool-base-layer-mens-pants-thermal-underwear-long
store_origin: SK
region: Slovakia
---

# 250 g/m² Midweight warmth Bonus Merino Wool Hiking Socks Natural temperature regulation 100% Merino Wool Base Layer Mens Pants - Thermal Underwear Long Johns

**Brand:** merino.tech
**Price:** € 126.34
**Availability:** ✅ In Stock

## Summary

> 🔥 Gear up in Merino.tech: Where warmth meets performance and style!

## Quick Answers

- **What is this?** 100% Merino Wool Base Layer Mens Pants - Thermal Underwear Long Johns by merino.tech
- **How much does it cost?** € 126.34 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/256223717-100-merino-wool-base-layer-mens-pants-thermal-underwear-long)

## 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:** Advanced moisture-wicking and odor-resistant fibers keep you dry and confident all day long.
- • **Year-Round Versatility:** Midweight 250 g/m² fabric naturally adapts to your body temperature for all-season comfort.
- • **All-Day Thermal Comfort:** Superfine 17.5 micron Merino wool delivers itch-free, breathable warmth for every adventure.
- • **Bonus Hiking Socks Included:** Elevate your outdoor gear with premium Merino wool socks valued at $21, included free.
- • **Effortless Care & Durability:** Machine washable with medium stretch fabric designed for long-lasting performance and fit.

## Overview

These 100% superfine Merino wool base layer pants offer midweight (250 g/m²) thermal insulation with natural moisture-wicking and odor resistance. Designed for active men, they include a bonus pair of Merino wool hiking socks and feature easy-care stretch fabric that fits true to size. Perfect for hiking, skiing, and everyday wear, they regulate body temperature year-round while providing itch-free comfort.

## Description

Buy 100% Merino Wool Base Layer Mens Pants - Thermal Underwear Long Johns (Large, Black 250) and other Bottoms at desertcart.com. Our wide selection is elegible for free shipping and free returns.

Review: Warm - Bought these as a Christmas gift. Husband loves them, wore them all winter long and the added pair of socks were a great bonus one of his favorite pairs! Super soft, very warm. Only complaint is they get peely after washing but they are an under layer so it doesn’t matter.
Review: Excellent comfort while keeping you warm, designed for men. - Wore these while ocean fishing in Alaska. Fantastic product. Keep me warm through three days of rainy and cold weather without hindering my movement. Most importantly it has a fly which for some reason many competitors products do not. I am 6’2” tall and weigh 208 lbs and extra large fit well.

## Features

- Midweight: Mens Merino Base Layer Available in: Lightweight 165 g/m², Midweight 250 g/m², Heavyweight 320 g/m². Merino Wool Hiking Socks ($21 Value!) - Midweight Merino Wool Pants for Men 250 g/m² and Wool Socks. Cool Packaging! Makes A Great Gift!
- Super Soft & Comfortable: 100% Superfine 17.5 Micron Merino Wool Underwear Mens provide all day comfort and no itch! Designed for daily wear without rubbing and overheating of regular cotton.
- Moisture Wicking & Odor Resistant: Merino long underwear mens natural wicking and odor-resistant properties allow it to absorb moisture better than any other fabric, keeping you dry and fresh.
- Easy Care: Washer/dryer safe. For longer lasting wear, hand wash and air dry. Midweight Merino Wool Base Layer Mens naturally regulates body temperature to keep you comfortable all year round.
- Zero Worries: Every Merino.tech Merino pants thermals for men we make is backed by our Merino.tech Promise - ensuring you're 100% happy with every Merino.tech purchase.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B085THHQ5Y |
| Age Range Description | Adult |
| Apparel Closure Orientation | Front |
| Apparel Closure Type | Pull On |
| Apparel Fabric Stretch | Medium Stretch |
| Apparel Fabric Weight Class | Medium Weight |
| Apparel Occasion and Lifestyle | Outdoor, Active, Urban, Professional |
| Best Sellers Rank | #27,354 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #5 in Men's Thermal Underwear Bottoms |
| Brand Name | Merino.tech |
| Care instructions | Machine Wash (Delicate Cycle), Hand Wash Recommended |
| Closure type | Pull On |
| Color | .Black 250 |
| Customer Reviews | 4.6 out of 5 stars 3,584 Reviews |
| Fabric Stretchability | Stretchable |
| Fabric Type | 100% Superfine Merino Wool |
| Fabric type | 100% Superfine Merino Wool |
| Fit Type | Standard |
| Fit to Size Sentiment | Fits True To Size |
| Front Pleat Type | Flat Front |
| Garment Size Country | United States |
| Global Trade Identification Number | 08062281003585 |
| Import Designation | Imported |
| Included Components | Merino Wool Hiking Socks |
| Item Length Description | Standard Length |
| Leg Style | Skinny |
| Manufacturer Part Number | MP-250 |
| Material Type | 100% Superfine Merino Wool |
| Model Name | Men Pants |
| Number of Items | 1 |
| Occasion Type | Hiking |
| Origin | Imported |
| Pants Form Type | Leggings |
| Pattern | Solid |
| Pattern Style | Solid |
| Pocket Description | No Pocket |
| Product Care Instructions | Machine Wash (Delicate Cycle), Hand Wash Recommended |
| Rise Style | Mid Rise |
| Seasons | All |
| Sleeve Length Description | Long Sleeve |
| Specific Uses For Product | Hiking, Sports, Yoga |
| Sport Type | Hiking, Snow Skiing, Snowboarding, Camping and Hiking, Running, Climbing, Mountaineering, Cycling |
| Style Name | Modern/Fitted |
| Style Number | MP-250 |
| Team Name | Sports |
| Ultraviolet Protection Factor | UPF 50 |
| Unit Count | 1 Count |
| Waist Size | 38 inches |
| Weave Type | Knit |

## Images

![100% Merino Wool Base Layer Mens Pants - Thermal Underwear Long Johns - Image 1](https://m.media-amazon.com/images/I/61kAQvSBMhL.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. For a snug layering fit under jackets or ski gear, size down one

## Customer Reviews

### ⭐⭐⭐⭐⭐ Warm
*by S***B on July 21, 2026*

Bought these as a Christmas gift. Husband loves them, wore them all winter long and the added pair of socks were a great bonus one of his favorite pairs! Super soft, very warm. Only complaint is they get peely after washing but they are an under layer so it doesn’t matter.

### ⭐⭐⭐⭐⭐ Excellent comfort while keeping you warm, designed for men.
*by B***. on June 21, 2026*

Wore these while ocean fishing in Alaska. Fantastic product. Keep me warm through three days of rainy and cold weather without hindering my movement. Most importantly it has a fly which for some reason many competitors products do not. I am 6’2” tall and weigh 208 lbs and extra large fit well.

### ⭐⭐⭐⭐⭐ Best long johns I've ever owned !
*by R***. on October 14, 2025*

The Merino Wool Base Layer Mens Bottom Pants are very warm, soft and comfy. I bought the Heavyweight, 320g bottoms, and I was worried about them being too thick, they're not that thick at all, they are perfect, very, very comfortable and warm. I was golfing with them in 40 degree weather with 12 mph wind and my legs were not cold at all, plus they were not too warm either, actually just right. I didn't where anything but a t-shirt, polo shirt, and light wind proof Foot Joy golf jacket on top, but my chest and arms were not as comfy warm, as my legs were, even though I was wearing thin golf pants over the Merino bottoms. I live in a cold, northern, climate and have bought many, many, different types of "long Johns" and these are by far the best I've ever bought. When it comes to bottom layer long johns, I think they should be snug, but not too tight, I have a 33 inch waist and a 32 inch inseam and their medium size fit me perfect!

## Frequently Bought Together

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

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**Shop now:** [https://www.desertcart.sk/products/256223717-100-merino-wool-base-layer-mens-pants-thermal-underwear-long](https://www.desertcart.sk/products/256223717-100-merino-wool-base-layer-mens-pants-thermal-underwear-long)

---

*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-08-26*