Fabric: Alpaca Wool
Fabric Dye: Low Impact Dyes (GOTS)
Fabric Finishing: Silicone (OEKO-TEX)
Thread Dye: Reactive Dye
Label: 100% Organic Cotton
Label Ink: Synthetic (GOTS)
Men's Alpaca Wool Long Sleeve Base Layer
250 Lightweight
Men's Alpaca Wool Long Sleeve Base Layer: 250 Lightweight
$169.36
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Alpaca vs Merino
Alpaca Wool outperforms Merino.
Alpaca fibers evolved in the harsh Peruvian Andes over millennia, to keep you protected on any adventure.
Unique Semi-Hollow Fibers:
• Lighter Weight
• Higher Insulation
Smoothest Fiber Scales:
• Moisture Wicking
• Softer without Felting
High-Performance Fiber
Pack lighter, travel farther.
Get the most out of nature with the ultimate performance fiber. Explore the outdoors clean and dry, with naturally anti-bacterial and temperature regulating Alpaca Wool.
❊ Anti-bacterial & Odor-resistant
↻ High sweat-wicking
☁ High breathability
☀ UV - Protection
✓ Light & durable
Microplastic-Free World
We put a stop to plastic pollution.
It is our mission to make clothes that allow you to explore nature without contaminating it with microplastics.
This is the first step in making our entire catalog petroleum-free and biodegradable.
We use only biodegradable materials:
• 100% Alpaca Wool Fabric
• 100% Cotton Threads
• 100% Cotton Labels
Shipping & Returns
Shipping & Returns
Free Shipping for US orders over $200 that are purchased from our US warehouse.*
![mens royal alpaca base layer color black](http://armsofandes.com/cdn/shop/files/mens-royal-alpaca-base-layer-color-black.webp?v=1723756464&width=1445)
![mens breathable longsleeve base layer color black](http://armsofandes.com/cdn/shop/files/mens-breathable-longsleeve-base-layer-color-black.webp?v=1723756462&width=1445)
![mens comfortable longsleeve base layer color black](http://armsofandes.com/cdn/shop/files/mens-comfortable-longsleeve-base-layer-color-black.webp?v=1723756467&width=1445)
![mens anti bacterial longsleeve base layer color black](http://armsofandes.com/cdn/shop/files/mens-anti-bacterial-longsleeve-base-layer-color-black.webp?v=1723756470&width=1445)
![color black](http://armsofandes.com/cdn/shop/files/250longsleeve.webp?v=1723756472&width=1445)
LESS WEIGHT, LESS WASHING
Ligthweight Long Sleeve Shirt
We perfected the long sleeve shirt, using the MOST SUSTAINABLE & HIGH-PERFORMANCE fiber. Lightweight & moisture wicking, 100% Royal Alpaca wool fabric is ethically produced in Peru. Designed to keep you warm and dry, our thermal long sleeve is ideal as a next-to-skin base layer.
![](https://cdn.shopify.com/s/files/1/0071/4748/7305/files/mens-breathable-longsleeve-base-layer-product-page.webp?v=1692984246)
![alpaca wool long sleeve t-shirt for men in gray color](https://cdn.shopify.com/s/files/1/0071/4748/7305/files/mens-royal-alpaca-base-layer-product-page_15f8746d-013e-45b6-bbc8-e6b99f4e5551.webp?v=1692984278)
NATURAL HIGH-PERFORMANCE
Moisture-Wicking Long Sleeve
For thousands of years, alpacas have been adapting to extreme environments of the Andes Mountains, where temperatures range widely. The harsh highland conditions created the ultimate outdoor fiber, designed to keep you protected, clean, and comfortable.
LEARN MORE ABOUT ALPACA PERFORMANCE
ALPACA WOOL: FIBER OF THE GODS
The Superior Fiber for the Outdoors
Alpaca wool is a superior choice for the outdoors and outperforms any other fiber: merino wool, cotton, rayon and polyester.
THE COMPARISON: ALPACA VS OTHER FIBERS →
LOW ENVIRONMENTAL IMPACT
The Most Sustainable Shirt
When wearing 100% Alpaca Wool, you can rest assured that your clothes are not contaminating nature.
![Man wearing alpaca wool long sleeve t-shirt on a hike in the mountains](https://cdn.shopify.com/s/files/1/0071/4748/7305/files/mens-anti-bacterial-longsleeve-base-layer-product-page.webp?v=1692984246)
![](https://cdn.shopify.com/s/files/1/0071/4748/7305/t/11/assets/scrensso2-1653058929147.webp?v=1653058937)
SINGLE ORIGIN SUPPLY CHAIN
Where Was This Shirt Made?
We use natural local resources and a short transparent supply chain. Our mission is to teach you as much as possible about how clothes should be made. Together we can move the fashion industry towards a sustainable future.
![](https://cdn.shopify.com/s/files/1/0071/4748/7305/t/11/assets/scrensso2-1653058929147.webp?v=1653058937)