• mens antibacterial baselayer half zip color black

    Fabric: 100% Royal 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)

    Materials

    Fabric: 100% Royal Alpaca Wool
    Fabric Dye: Natural Plant-Based
    Fabric Finishing: Silicone (OEKO-TEX)
    Thread Dye: Natural
    Label: 100% Organic Cotton
    Label Ink: Synthetic (GOTS)

    Materials
  • mens ecological baselayer half zip color black

    Fabric: 100% Royal 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)

    Materials

    Fabric: 100% Royal Alpaca Wool
    Fabric Dye: Natural Plant-Based
    Fabric Finishing: Silicone (OEKO-TEX)
    Thread Dye: Natural
    Label: 100% Organic Cotton
    Label Ink: Synthetic (GOTS)

    Materials
  • mens low impact dye baselayer half zip color black

    Fabric: 100% Royal 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)

    Materials

    Fabric: 100% Royal Alpaca Wool
    Fabric Dye: Natural Plant-Based
    Fabric Finishing: Silicone (OEKO-TEX)
    Thread Dye: Natural
    Label: 100% Organic Cotton
    Label Ink: Synthetic (GOTS)

    Materials
  • mens natural baselayer half zip color black

    Fabric: 100% Royal 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)

    Materials

    Fabric: 100% Royal Alpaca Wool
    Fabric Dye: Natural Plant-Based
    Fabric Finishing: Silicone (OEKO-TEX)
    Thread Dye: Natural
    Label: 100% Organic Cotton
    Label Ink: Synthetic (GOTS)

    Materials
  • mens royal alpaca baselayer half zip color black

    Fabric: 100% Royal 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)

    Materials

    Fabric: 100% Royal Alpaca Wool
    Fabric Dye: Natural Plant-Based
    Fabric Finishing: Silicone (OEKO-TEX)
    Thread Dye: Natural
    Label: 100% Organic Cotton
    Label Ink: Synthetic (GOTS)

    Materials

Fabric: 100% Royal 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)

Materials

Men's Alpaca Wool Base Layer

300 Lightweight Half-Zip

Men's Alpaca Wool Base Layer: 300 Lightweight Half-Zip

€150,30
€150,30
Liquid error (snippets/price line 47): Computation results in '-Infinity'% OFF

*VAT Included

Low Impact Dyes:
Natural Dyes: Why Natural?
Size

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

• Regular Fit

• Model wears Black Base Layer size M

• Model is 6'0", has 41.7" chest and 31.5" hips

Worldwide shipping and returns are eligible.

View full details

LESS WEIGHT, LESS WASHING

The Best Hiking Wool Base Layer

When exploring, it's important to have a lightweight warm base layer that will wick moisture from your skin, so you stay comfortable all day. With our zip-neck's versatile design, the wool base layer can be used as a ski base layer, but also looks stylish in the city. Made from 100% Royal Alpaca Wool, our base layer is naturally odor resistant, keeping you smelling clean after skiing or hiking the outdoors. Made sustainably, this wool fleece is the best choice for all adventures.

  • 300g/m2 of 100% Royal Alpaca Wool
  • PFAS-free
  • Base Layer Weight: 356 g (Size M)
  • Designed for hiking, trail running, climbing, traveling, and backpacking in all seasons
  • Fitted cut with a natural stretch
  • Pairs well with our Alpaca Wool Tights in Winter & Fall
  • Fabric Care
alpaca wool base layer for men in gray color

NATURAL HIGH-PERFORMANCE

The Lightest Thermal Base Layer

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.

  • Perfect Temperature
    Semi-hollow fibers act as an internal A/C, balancing your body temperature in extreme climates.
  • Always Dry
    High moisture-wicking fibers keep your body and clothes dry and sweat-free all day.
  • Clean & Fresh
    Naturally anti-bacterial & odor resistant keratin fibers ensure your hygiene.

Alpaca Wool is lightweight and does not require frequent laundering, letting you explore lighter.

  • Light & Durable
    Semi-hollow core fibers insulate and make the fabric lighter and resistant.
  • Wear More, Wash Less
    Alpaca dries quickly and absorbs minimal moisture, preventing bacterial growth.
  • Smooth Fiber Scales
    The scales of alpaca fibers are smoother than those of sheep wool. They help wick moisture away, while also having incredibly low moisture absorption. 
  • 18 to 19 Microns* Royal Alpaca Wool
    The finest Alpaca Wool with naturally smooth fiber scales minimize felting and ensure luxurious softness on your skin without itching.

*Microns define the diameter of the fiber.

LEARN MORE ABOUT ALPACA PERFORMANCE

alpaca wool base layer for men in gray color

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 →

Comparison graph alpaca wool vs merino vs polyester vs rayon vs cotton

THE COMPARISON: ALPACA VS OTHER FIBERS

LOW ENVIRONMENTAL IMPACT

The Most Sustainable Base Layer

When wearing 100% Alpaca Wool, you can rest assured that your clothes are not contaminating nature.

  • 100% Royal Alpaca Wool Fabric
  • 100% Cotton Threads
  • 100% Organic Cotton Labels
  • 100% Natural Dyes or OEKO-TEX Certified Dyes
  • OEKO-TEX Certified Silicone Fabric Finishing
  • GOTS Certified Ink (for the labels)

We are on a journey to create 100% plastic-free and biodegradable base layers so that you can wear your clothes knowing that you are not releasing any microplastics.

Microplastics are not only found in the environment but also in our bloodstream.

Our naturally dyed base layers contain zero synthetic dyes and we are looking for a natural replacement for the silicone fabric finishing and zippers that have plastic on the back of the tape.

Our wool is never Superwashed since alpaca fibers are naturally smooth.

Alpacas roam freely in their natural habitat in the highlands of Peru. Their farmers never harm or kill them for their wool. Alpacas create small footprints that do not damage the fields they graze on. When they eat, they cut the grass, promoting regrowth.

DISCOVER OUR SUSTAINABILITY

Man wearing alpaca wool base layer on a hike in the mountains

Shipping
& Returns →

Compostable
Packaging

Frequently Asked
Questions →

SINGLE ORIGIN SUPPLY CHAIN

Where Was This Base Layer 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.

Contrary to industry norms, every step involved in making our clothes is done in only one country: Peru, the home of our family. Our production in Peru includes fiber sourcing, yarn spinning, fabric knitting, dyeing, finishing, and garment sewing.

From Peru, our clothes go straight to California or Europe on its journey to you.

Manufacturing in one country allows us to greatly reduce our carbon footprint and freight shipping. This is a major step on our journey to becoming a carbon negative company.

We avoid industrial farming by working with co-op farmers in the Andes. Doing everything in Peru guarantees we know how the alpacas and the workers involved are being treated.

LEARN MORE ABOUT OUR SUPPLY CHAIN

Complete Your Hiking Pack

Men's Alpaca Wool Long Sleeve Shirt

160 Ultralight

from €94,70

Men's Alpaca Wool Joggers

300 Lightweight

from €144,80

Men's Alpaca Wool Boxers

160 Ultralight

from €44,60

Customer Reviews

Based on 27 reviews
85%
(23)
4%
(1)
0%
(0)
4%
(1)
7%
(2)
W
Waiting
Product not received

Difficult to review as am Still waiting to receive the item !

B
Bojan Pilipovic
My order never left the warehouse

Absolutely disgraceful, I contacted you twice and both times you said package will be sent and never was, for 2 weeks. And on top of that when I contacted you for a refund no one answers me for 3 days now.

T
Thomas A. Ewart
Men's Alpaca Wool Base Layer: 300 Lightweight Half-Zip

Beautiful garment. Loved the fit (L). Well tailored and warm. Missing a star as I found it itchy against the skin. Not too much of n issue for me, as I don't wear as a base layer, but would find it uncomfortable if I did. If Arms of Andes addresses this one concern, I'll happily order another-

M
Mauricio Caceres
Great quality, soft and odorless

It's quickly become my favorite piece of clothing. Even wearing this without an additional layer has proven quite effective in some of the warmer winter days, but as a base layer it's been a really effective workhorse. Great quality, very soft, and as best I can tell all that's advertised about odor resistance is definitely true.

Important (?) Note: The first time I wore this it felt fairly itchy. They advertise as itch free so I was concerned, as I've heard some people have bad reactions to 100% wool. However, it seems it was just a "new garment" problem. After wearing it out on a run, whatever itch I felt went away completely and now only the softness remains. I haven't read anyone else mention anything like it, but if you've never worn 100% wool before I figured I'd share my experience with it. I'm really glad I forced myself to give it a try.

J
James Rosen
luxurious

This is a handsome, warm, and luxurious top. Besides the expected property of alpaca, I am impressed with how comfortable and lush the top feels. The neck is a close fit, no gaps - at least for my neck size - which makes it comfortable and warm. Although not recommended by Arms of Andes, I laundered mine in warm water and tumble dry low. - no problem. no shrinkage, no bleeding of color. Laundered twice so far and it fits and feels the same as new.

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