---
product_id: 641900373
title: "100% Merino Wool Shirts for Men - Thermal Underwear Base Layer Long Sleeve"
brand: "merino.tech"
price: "B/.176"
currency: PAB
in_stock: true
category: "Merino.Tech"
url: https://www.desertcart.com.pa/products/641900373-100-merino-wool-shirts-for-men-thermal-underwear-base-layer
store_origin: PA
region: Panama
---

# Natural moisture-wicking & odor-resistant Thermal base layer for year-round temperature regulation 100% superfine 17.5 micron Merino wool 100% Merino Wool Shirts for Men - Thermal Underwear Base Layer Long Sleeve

**Brand:** merino.tech
**Price:** B/.176
**Availability:** ✅ In Stock

## Summary

> 🧥 Elevate your base game—comfort that works as hard as you do!

## Quick Answers

- **What is this?** 100% Merino Wool Shirts for Men - Thermal Underwear Base Layer Long Sleeve by merino.tech
- **How much does it cost?** B/.176 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/641900373-100-merino-wool-shirts-for-men-thermal-underwear-base-layer)

## 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

- • **Odor-Free Multi-Day Wear:** Go longer between washes with advanced moisture-wicking and odor resistance—ideal for travel and active lifestyles.
- • **All-Day Comfort, Zero Itch:** Experience ultra-soft superfine Merino wool that feels like a second skin—no itch, no irritation, just pure comfort.
- • **Year-Round Climate Control:** Stay perfectly balanced with natural temperature regulation that keeps you warm in winter and cool in summer.
- • **Effortless Care & Durability:** Machine washable and designed to last, this base layer keeps its shape and performance wash after wash.
- • **Versatile Style for Every Occasion:** From office meetings to mountain hikes, this sleek, lightweight long sleeve fits seamlessly into your daily wardrobe.

## Overview

Crafted from 100% superfine 17.5 micron Merino wool, this men's thermal base layer shirt offers superior softness, natural moisture-wicking, and odor resistance. Designed for all-season wear, it regulates body temperature to keep you comfortable whether layered or worn alone. With UPF 50 sun protection, medium stretch fabric, and easy care instructions, it’s the perfect versatile shirt for active professionals seeking performance and style.

## Description

10 Reasons Why Merino.tech Merino Wool Shirts for Men are Perfect for You! 1. Affordable - Replace your cotton with thermal shirts for men- without breaking the bank! 2. Four Season Comfort - Warm undershirt men thermal long sleeve for men naturally regulates body temperature to keep you comfortable all year round. 3. Perfect for Travel - Merino thermal long sleeve men is ideal for multi-day wear with no stink and comfort in all climates. Lightweight and naturally wrinkle resistant. 4. Easy Care - Washer/dryer safe. Merino thermal underwear for men for longer lasting wear of mens base layer wool, hand wash and lay flat to air dry. 5. Zero Worries - Every Merino.tech Merino thermal base layer men is backed by our Merino.tech promise, so you can feel confident and comfortable with every purchase. 6. Ideal for Daily Wear - Enjoy the comfort and performance of thermal shirt base layer men cold weather every day - not just trail days. 7. Great for Layering - Mens thermal long sleeve shirt is fit for layering without bulk. 8. Itch-Free - Ultra soft 100% Merino Wool mens base layer provides all day comfort and no itch! 9. UPF 50 Protection - merino wool t-shirt thermals for men block out harmful rays from the sun. 10. Great for Any Occasion - Merino wool shirt men are great for the trail, gym, hunting, fishing, skiing, the office, or a night out . Order your merino wool men base layer top now and say goodbye to smelly tees!

## Features

- Everyday Shirt: Mens Merino Base Layer is ideal to be worn as a standalone piece or layered for year-round adventures
- Super Soft & Comfortable: 100% Superfine 17.5 Micron Merino Wool Base Layer Mens provides all day comfort and no itch! Merino undershirt is designed for daily wear without rubbing, overheating, or bunching of regular cotton
- Moisture Wicking & Odor Resistant: Merino Thermal Tops for men natural wicking properties allow it to absorb moisture better than any other fabric, keeping you dry and fresh
- Easy Care: Washer safe. For longer lasting wear, hand wash and lay flat to air dry. Merino Wool Undershirt Men naturally regulates body temperature to keep you comfortable all year round
- Zero Worries: Every Merino Wool Shirt we make is 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 | B0CLB648RB |
| ASIN  | B0G6CZ3Z8M |
| Age Range Description | Adult |
| Apparel Closure Type | Pull On |
| Apparel Fabric Stretch | Medium Stretch |
| Apparel Fabric Weight Class | Medium Weight |
| Apparel Occasion and Lifestyle | Athletic |
| Back Style | T Back |
| Best Sellers Rank | #71,368 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #23 in Men's Base Layers #30 in Men's Thermal Underwear Tops |
| Brand Name | Merino.tech |
| Color | 190 Black |
| Cuff Type | Plain Hem |
| Customer Reviews | 4.5 4.5 out of 5 stars (774) |
| Date First Available  | December 11, 2025 |
| Department  | mens |
| Embellishment Feature | No |
| Fabric Stretchability | Stretchable |
| Fabric Type | 100% Superfine 17.5 μ Merino Wool |
| Fit Type | Regular |
| Fit to Size Sentiment | Fits True To Size |
| Garment Size Country | United States |
| Hemline Form | Straight Hemline |
| Import Designation | Imported |
| Item Length Description | Standard Length |
| Item model number  | MLS-190 |
| Manufacturer Part Number | MLS-190 |
| Material Type | 100% Superfine Merino Wool |
| Model Name | Men Ls Performance |
| Neck Style | Crew Neck |
| Number of Items | 1 |
| Occasion Type | Vacation |
| Pattern | Solid |
| Pocket Description | No pocket |
| Product Care Instructions | Machine Wash (Delicate Cycle), Hand Wash Recommended |
| Seasons | All |
| Shirt Form Type | Sport Jersey |
| Sleeve Length Description | Long Sleeve |
| Sleeve Type | Long Sleeve |
| Sport Type | Hiking, Snow Skiing |
| Style Name | Modern |
| Style Number | MLS-190 |
| Ultraviolet Protection Factor | UPF 50 |
| Unit Count | 1 Count |
| character | Sports |
| collar-type | Collarless |
| top-style | Shirt |

## Images

![100% Merino Wool Shirts for Men - Thermal Underwear Base Layer Long Sleeve - Image 1](https://m.media-amazon.com/images/I/31aOzQ0aoLL.jpg)
![100% Merino Wool Shirts for Men - Thermal Underwear Base Layer Long Sleeve - Image 2](https://m.media-amazon.com/images/I/414XJrQqRpL.jpg)
![100% Merino Wool Shirts for Men - Thermal Underwear Base Layer Long Sleeve - Image 3](https://m.media-amazon.com/images/I/41Gq18h7kbL.jpg)
![100% Merino Wool Shirts for Men - Thermal Underwear Base Layer Long Sleeve - Image 4](https://m.media-amazon.com/images/I/51rAJRMZAXL.jpg)
![100% Merino Wool Shirts for Men - Thermal Underwear Base Layer Long Sleeve - Image 5](https://m.media-amazon.com/images/I/510a7oOuZ5L.jpg)

## Available Options

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

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**Shop now:** [https://www.desertcart.com.pa/products/641900373-100-merino-wool-shirts-for-men-thermal-underwear-base-layer](https://www.desertcart.com.pa/products/641900373-100-merino-wool-shirts-for-men-thermal-underwear-base-layer)

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*Product available on Desertcart Panama*
*Store origin: PA*
*Last updated: 2026-09-17*