Name: Men's Alpaca Wool Sweater: 300 Lightweight
Rating: 3.75 (12 reviews)

Add warmth without adding a hood.

Your layer starts with Alpaca wool from Peru. Its smooth fiber surface gives the knit a soft feel, while the knit structure allows air to move through as you do.

Product info

Keep your layers simple
The pullover design gives you a knit layer for cooler days without a hood or front zipper.
Warmth in the knit
The knit holds air close to your body for insulation, while its open structure allows air to move through as your effort changes.

Perfect for

Outdoor activities
Travel
Everyday layering

Product details

What goes into your layer

Fabric100% Royal Alpaca wool
Fabric DyeLow Impact Dyes (GOTS)
Thread100% Pima Cotton
Thread DyeReactive Dye
Label100% Organic Cotton
Label InkSynthetic (GOTS)

Specifications

Fabric weight300 g/m²
Weight344 g / 12.1 oz in size M
ConstructionLong-sleeve pullover sweater
FitFitted cut with natural stretch
Made inPeru

Size & fit

Use your body measurements to choose your size. These are body ranges, not flat garment measurements.

Size	Chest	Waist
S	35 - 38 in	28 - 31 in
M	38 - 40.5 in	31 - 34 in
L	40.5 - 43 in	34 - 36.5 in
XL	43 - 46 in	36.5 - 39.5 in
XXL	46 - 49 in	39.5 - 42 in

Size	Chest	Waist
S	89 - 96 cm	72 - 79 cm
M	96 - 103 cm	79 - 86 cm
L	103 - 110 cm	86 - 93 cm
XL	110 - 117 cm	93 - 100 cm
XXL	117 - 124 cm	100 - 107 cm

Care for your layer

Hand wash or machine wash on a gentle/wool cycle in cold water (50-68°F). Use a mild wool-safe or pH-neutral detergent. Wash with similar colors. Don't bleach or use fabric softener.

Reshape while damp and lay flat to dry. Don't tumble dry, twist, or wring. Cool iron if needed. Store folded in a cool, dry space with airflow; avoid hanging.

Shipping & Returns

US orders over $200 ship free. Estimated US delivery is 7 to 10 business days, including preparation and transit. You'll receive a tracking number by email once your order ships. International rates are calculated at checkout; estimated delivery is 10 to 20 business days. Customs duties and import taxes are your responsibility.

Eligible unused, unwashed items may be returned within 15 days of delivery. What counts is that you start your request within those 15 days; how long the package then takes to reach us does not affect your refund. Original packaging isn't required. A $5 domestic return shipping fee applies unless Free Returns was purchased at checkout. International return shipping is paid by the customer, except for wrong or defective items under the policy.

Full shipping & return policy

Men's Alpaca Wool Sweater: 300 Lightweight

The benefits

Why Alpaca wins

Andes-adapted for changing temperatures

Alpacas evolved where days run warm and nights turn cold. Their semi-hollow fibers trap insulating air, helping you stay comfortable as the temperature changes.

Softness starts in the fiber

Alpaca’s smoother scales give the fabric a soft feel against your skin. Comfort comes from the fiber’s structure.

Wear more, wash less

Alpaca wool naturally resists odor. Air your layer between wears, then wash it when it needs cleaning. Less time doing laundry. More time outside.

Single origin

Peru, start to finish.

Arms of Andes is a family company with roots in the Peruvian Andes. “Arms” brings together the initials of four siblings. That connection to Peru shapes what we make and where we make it.

From fiber sourcing and yarn spinning to knitting and sewing, production stays in Peru. One country, with the people and knowledge behind your gear close together.

Learn our story

Customer reviews

Good fit, itchy on skin

There is no doubt the first touch out of the box is soft and luxurious. However once I put it on it was very itchy on the skin. I one half a dozen smartwool shirts, 100% pure wool and those are much softer when wearing.
I'm hoping if I wear this a few times it will soften up on the skin or I'll get used to it? At the price point I was expecting very soft on my skin!

The fit is good, I purchased a large and I am 6'2, 185lbs. I though the wrist opening was a bit too loose and could be snugger.

PERFECTION

I sleep in these garments with the bedroom at 50F. I wear them mountain biking and bike commuting in winter weather, and stay warm enough but never get overheated or sweaty. I don't want to, but I will remove them to shake/air them out and grab an occasional shower. I've tried merino blends (100% merino is too fragile). I've tried hemp blends (gets that funky pit smell from even day of wear just like any plastic workout garbage).

Across 4 seasons and various activities, 100% cotton, 100% linen, and 100% ARMS OF ANDES alpaca wool complete me as a non-nudist. I'm so done with synthetic textiles. ALL HAIL THE ALPACA

Some may worry about itchiness. One gentle cold wash was enough the tame the itchiness when brand new..

Base layer

It is way too scratchy. I cannot wear it as a base layer.

Great shirt!

It was a gift for my stepson. He is one of my favorite people, so I love to make him smile! He said this one is great and he is an experienced alpaca shopper. This gift made him happy!

Warm, comfy, & well-built

Very pleased with my Alpaca wool sweater from Arms of the Andes.
This garment is high-quality, well-sewn, clearly durable.
It's also comfy, compact, incredibly warm for weight, and good looking, too.
Highly recommended.

Hi David,
We’re so happy to hear that! It sounds like your Alpaca wool sweater is everything you hoped for cozy, durable, and stylish. Thank you for sharing your experience and recommending it, we truly appreciate it!

1 2 3

5 stars: 7 (58%)
4 stars: 1 (8%)
3 stars: 0 (0%)
2 stars: 2 (17%)
1 star: 2 (17%)

Good fit, itchy on skin

The fit is good, I purchased a large and I am 6'2, 185lbs. I though the wrist opening was a bit too loose and could be snugger.

PERFECTION

Across 4 seasons and various activities, 100% cotton, 100% linen, and 100% ARMS OF ANDES alpaca wool complete me as a non-nudist. I'm so done with synthetic textiles. ALL HAIL THE ALPACA

Some may worry about itchiness. One gentle cold wash was enough the tame the itchiness when brand new..

Base layer

It is way too scratchy. I cannot wear it as a base layer.

Great shirt!

It was a gift for my stepson. He is one of my favorite people, so I love to make him smile! He said this one is great and he is an experienced alpaca shopper. This gift made him happy!

Warm, comfy, & well-built

Impressed

I’m very impressed with the weight and feel of alpaca 300 base layer. I’m looking forward for winter. It is softer than the merinoI have been using. I can’t wait until the other 420 weights are in production again.

HI John
Thanks so much for your feedback! We're really happy to hear that our garments exceeded your expectations. It’s great to know you’re enjoying the feel and warmth of the Alpaca 300 base layer, we can’t wait to have the 420 weights back in production for you too!

BEWARE: Extremely itchy!

They claim this to be „The finest Alpaca Wool with naturally smooth fiber scales minimize felting and ensure luxurious softness on your skin without itching.“

I received the item with high hopes but now I am simply frustrated. It is EXTEMELEY itchy. I would say at least 5 to 10 times more itchy than any piece of merino wool from any brand that I own. Feels like a barbwire chainmail. There is no way I am going to wear this.

Now I need to send it all the way back to america on my own cost. If this brand would really want to be sustainable they should be transparent with this. And they should have a warehouse in europe instead of shipping back and forth overseas.

Hi Jan,
Thank you for your detailed feedback!. We’re truly sorry to hear that your experience didn’t meet expectations. Comfort is incredibly personal, and while many customers find alpaca wool gentle on the skin, we know it doesn’t feel that way for everyone.
We also hear your concerns about the return process and international shipping. Sustainability and customer experience are both very important to us, and your input highlights areas where we need to do better. We’re constantly working to improve our service, and feedback like yours is incredibly helpful in guiding those improvements.

HONEST REVIEW

I have not worn the garment yet. It is slightly heavier than my merino wool L.L.Bean 250 mid-weight made in china.
I have many pairs of alpaca socks of different weights from alpaca direct and I love each of them dearly. Bean's I have used many of their products over my lifetime and they have been superb in all cases. My wife gifted me a watch cap and neck wrap in a beautiful blend of multicolor alpaca yarn that she made for me. Stunning to look at.
My only dislike is the retail cost. Maybe coupons for good reviews could incentivize happy customers to purchase more.

Hi David,

Thank you for sharing your detailed feedback! We’re so glad to hear you enjoy our products. It’s wonderful that your wife made you such a beautiful watch cap and neck wrap – what a thoughtful gift!

We understand your concern about the retail cost. We strive to provide high-quality products, and we’re always working to offer the best value to our customers. Your suggestion about coupons is a great idea, and we’ll certainly consider it moving forward.

We hope you’ll give the garment a try soon – we’re confident it will meet your expectations just like the socks!

thumbs up ...

Feels great and is comfortable to wear ... it's hard for me to take it off;-)). My only regret is that there aren't more colors. I bought the gray one from a third party vendor this past week.

Hi George,
We're so glad to hear you're loving the comfort! It sounds like it's become a new favorite. Thanks for your feedback about the colors, hopefully, we can offer more options in the future!

Stunningly Great

I've forever switched from Merino wool to Alpaca. The alpaca is wool is the most comfortable fabric against my skin. The warmth factor is noticeably greater than wool; so far, the fabric seems to be longer lasting than wool. I purchased this product based on an alpaca blanket I bought a while back, which had amazing weight to warmth ratio. There is so much hype around specialty fabrics, but this fabric is the best I've every had. I use this for backpacking, but also every day use based on it's comfort and warmth. Highly recommended.

It's light weight, warm, and comfortable

It's light weight, warm, and comfortable

Hi Richard, That sounds like the perfect combo! We're so happy to hear it's working well for you!

False advertising charged over double for a tshirt

The website states on orders to Canada that customs and duties already included in order. I was charged an additional $104.91 on a $127 tshirt in addition to $20.78 shipping charges. Multiple messages have been sent and still not resolved. So the $127 t-shirt cost me $267.95 when the website clearly states customs and duty already included. I have been trying to resolve this for over 2 weeks with no resolution and no one responding to my messages anymore.

Hi Donna!
We sincerely apologize for the unexpected customs charges and the delay in resolving this issue. We're glad that our team could work things out for you, and we truly regret the experience you’ve had. Your feedback is important to us, and we appreciated your patience while we worked to improve our service.