# Merino.tech Men's 100% Merino Wool Base Layer Pants, 165, 250, or 320 g/m²

Add a merino base layer for hikes and winter days with Merino.tech men's pants in 165, 250, or 320 g/m².

- [Original product page](https://www.ofertitastop.com/us/product/merino-tech-mens-100-merino-wool)
- [View offer](https://www.ofertitastop.com/us/visit/merino-tech-mens-100-merino-wool)
- Market: US
- Language: en-US
- Currency: USD
- Product updated: 2026-10-17T12:40:26.787Z
- Brand: Merino.tech
- SKU: ofertitastop-us-137236
- Category: Apparel & Accessories > Clothing > Underwear & Socks > Long Johns
- Source store: amazon US
- Active deal: Yes
- Price: 58.49 USD
- Previous price: 64.99 USD
- Discount: 10%
- Rating: 4.6 / 5
- Reviews: 3633

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## Description

For a hike, ski day, or cold-weather commute, a merino base layer adds a comfortable layer beneath your outerwear. These men's long johns are made from 100% superfine merino wool, with three fabric weights to choose from for different layering needs.

The lightweight option is 165 g/m², the midweight is 250 g/m², and the heavyweight is 320 g/m². Choosing a weight lets you tailor the layer to your plans and the rest of your clothing.

Merino wool's moisture-wicking and odor-resistant properties support comfortable wear through outdoor activities and everyday routines. The fabric is 17.5 microns, and the pants are designed for softness and all-day comfort.

## Technical details
- Type: Men's merino wool base layer pants, also described as thermal underwear and long johns
- Material: 100% superfine merino wool
- Fiber diameter: 17.5 microns
- Available weights: Lightweight 165 g/m², midweight 250 g/m², heavyweight 320 g/m²
- Care: Washer- and dryer-safe, hand washing and air drying are recommended for longer-lasting wear

## Everyday use
Wear the pants under hiking or ski clothing when you want a wool layer next to your skin, or use them as thermal pajamas on cold nights. Merino wool naturally wicks moisture and resists odor, useful qualities when a base layer is worn during active days or for extended everyday comfort. The midweight fabric is also described as naturally regulating body temperature for year-round comfort.

Compared with choosing a regular cotton layer, these pants offer merino wool's documented moisture-wicking and odor-resistant properties. The three weights provide a practical way to select a lighter layer for more flexible layering or a heavier fabric for a more substantial base layer. It makes sense if you want long underwear that can serve outdoor activities as well as daily wear, with a weight option suited to your layering preference.

## What’s included
The heavyweight offering is described as 320 g/m² merino wool pants paired with wool hiking socks. The pants are the core of the product: a men's base layer intended for hiking, skiing, winter wear, and other uses where thermal underwear fits beneath everyday or outdoor clothing.

## What to clarify
**What fabric are the pants made from?** They are made from 100% superfine 17.5-micron merino wool. The wool's natural wicking and odor-resistant properties make it suitable for both outdoor activity and regular wear.

**What weights can I choose from?** The listed options are lightweight at 165 g/m², midweight at 250 g/m², and heavyweight at 320 g/m². Pick the weight that best suits your preferred layering approach.

**How should I care for them?** The pants are washer- and dryer-safe. For longer-lasting wear, hand washing and air drying are recommended.

## Is it worth it?
These merino long johns are a useful choice when you want one base-layer style for hiking, skiing, winter outfits, or comfortable daily wear. The 100% merino construction, three weight choices, and practical moisture-wicking properties make it easier to match your layer to the activity and clothing you plan to wear.

## Images

![Merino.tech Men's 100% Merino Wool Base Layer Pants, 165, 250, or 320 g/m² — 1](https://www.ofertitastop.com/i/mE9VZMvbb3II0iyKXGkKlaQ2SH4if0NLTaCKEsT0n3MAX24oeGlV0jO-TY44n7nRCHsaJo2BaFS0hnf3_gHHN6V4BTRXuaJZ7efX5A3QuII3-3E6KHpJe75K7Q.jpg)

![Merino.tech Men's 100% Merino Wool Base Layer Pants, 165, 250, or 320 g/m² — 2](https://www.ofertitastop.com/i/20UpxXIVBDNRP8H65QFJKR3EOYcanWYVNNEwDPmfifKJyfCAl2aYAzslejPK8AQmv5WTGNsLddfKcGWqQ1JcNqMFyYGWn1opCi1oPPgLapc7JIofqpIlHVOX5A.jpg)

![Merino.tech Men's 100% Merino Wool Base Layer Pants, 165, 250, or 320 g/m² — 3](https://www.ofertitastop.com/i/P2FQYwBjsa2ZSumNrIWaA5CFLCPs7TeTq-pUYiDtyUmgDSW87G-lnjFQpGjTjp2mzMHzl6e__D17P29oYdT7JlCM08NTesjz0I9Fw66_Vkt-UZyoLUxuYw9MXA.jpg)

![Merino.tech Men's 100% Merino Wool Base Layer Pants, 165, 250, or 320 g/m² — 4](https://www.ofertitastop.com/i/SWuaIruS4eGzV9YAb8LeYrHYof7E3wAbB-XEqaUvV7QV5Ro0ICVLSDyQt0IZdLNef00-s8_RraU_0ruKTXFLiXB0eaSwXY4Pz8QyyoPDSnAO69io4NiNSPil-A.jpg)

![Merino.tech Men's 100% Merino Wool Base Layer Pants, 165, 250, or 320 g/m² — 5](https://www.ofertitastop.com/i/E2mKhOiX1CvcP5lguBA_wrf3lvAYBJ4SI-vX7Bgiu1Nz3j_il5hBlc3kW1chfmp3tE7joaaojfBEbWRvQz6_RWyMpIedX14BPV-qDnGKj9drgiX_qQjekGmqNQ.jpg)