Name: Men's Alpaca Wool Leggings: 300 Lightweight
Rating: 4.70 (23 reviews)

Build warmth from the first layer.

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

A close fit beneath your outer pants
The fitted cut keeps bulk down, while the knit stretches naturally as you move.
Stretch from the knit
The knit stretches naturally as you move, keeping a fitted layer comfortable through changing positions.

Perfect for

Outdoor activities
Travel
Cold-weather layering

Product details

What goes into your layer

Fabric100% Royal Alpaca wool
Elastic50% Tree Rubber & 50% Cotton
Fabric DyeLow Impact Dyes (GOTS)
Thread100% Pima Cotton
Thread DyeReactive Dye
Label100% Royal Alpaca wool
Label InkSynthetic (GOTS)

Specifications

Fabric weight300 g/m²
Weight265 g / 9.3 oz in size M
ConstructionFull-length leggings with a fitted cut and natural stretch
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	Waist	Hips	Inseam
S	28 - 31 in	33 - 35 in	29.5 - 31 in
M	31 - 34 in	35 - 38 in	31 - 32 in
L	34 - 36.5 in	38 - 40.5 in	32 - 32.5 in
XL	36.5 - 39.5 in	40.5 - 43 in	32.5 - 34 in
XXL	39.5 - 42 in	43 - 46 in	34 - 37 in

Size	Waist	Hips	Inseam
S	72 - 79 cm	84 - 89 cm	75 - 78 cm
M	79 - 86 cm	89 - 96 cm	78 - 81 cm
L	86 - 93 cm	96 - 103 cm	81 - 83 cm
XL	93 - 100 cm	103 - 110 cm	83 - 86 cm
XXL	100 - 107 cm	110 - 117 cm	86 - 93 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.

Naturally dyed colors can transfer with sweat or friction. Wear them with dark clothing or equipment, wash sparingly, and avoid citric acid, which can lighten the color.

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 Leggings: 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

Works perfect under jeans, turns any pants into thermals.

Title says it all, these were very comfortable for all day wear, and fit easily under jeans. They stay warm and dry, not scratchy at all.

Thank you for your feedback! We’re so glad to hear they work well under jeans and keep you warm and comfortable all day. We really appreciate you sharing your experience!

women’s sizes are

I ordered Men’s size because women’s sizes are UNREALISTIC, tiny waist cutting you in half all day. So soft and comfortable. I’m ready for winter!

Hi Mary, thank you for your review! We're so glad to hear you’re enjoying the softness and comfort of the leggings. Wishing you a warm and cozy winter!

Great layering leggings

My husband loves these leggings - warm, nice heavy quality, fit TTS according to AoA size chart.

Hi Lesli,
Thank you so much for sharing! We’re thrilled to hear your husband loves the leggings and that they fit perfectly. It’s wonderful to know the warmth and quality hit the mark too. We really appreciate your support!

Fits great, very comfortable

Fits like second skin. Not restrictive at in any way. Maybe just a touch itchy but it’s pretty much non existent unless you’re very sensitive.

Great quality product for a more sustainable future. Will recommend to anyone.

Hi Eugene,
We’re so happy to hear that! It sounds like the fit and comfort are just right, and we really appreciate your kind words about the quality and sustainability. Thank you for recommending us, it means a lot!

The ultimate "long johns"

I love my alpaca leggings. Historically I wore the 160 lightweight leggings but because I love them so much, I wore them all the time and wore them out. Lesson learned. Trying again but this time with the thicker (300 weight) leggings and maybe rotate through more than one pair!

Hi Korey,
Thank you so much for sharing your experience with our alpaca leggings!
It’s great to know you’re trying out the 300 weight this time around, and rotating through a few pairs sounds like a smart (and cozy!) plan. We hope the thicker version brings you just as much comfort and satisfaction.
We truly appreciate your continued support.

1 2 3

5 stars: 19 (83%)
4 stars: 1 (4%)
3 stars: 3 (13%)
2 stars: 0 (0%)
1 star: 0 (0%)

Works perfect under jeans, turns any pants into thermals.

Title says it all, these were very comfortable for all day wear, and fit easily under jeans. They stay warm and dry, not scratchy at all.

Thank you for your feedback! We’re so glad to hear they work well under jeans and keep you warm and comfortable all day. We really appreciate you sharing your experience!

women’s sizes are

I ordered Men’s size because women’s sizes are UNREALISTIC, tiny waist cutting you in half all day. So soft and comfortable. I’m ready for winter!

Hi Mary, thank you for your review! We're so glad to hear you’re enjoying the softness and comfort of the leggings. Wishing you a warm and cozy winter!

Great layering leggings

My husband loves these leggings - warm, nice heavy quality, fit TTS according to AoA size chart.

Fits great, very comfortable

Fits like second skin. Not restrictive at in any way. Maybe just a touch itchy but it’s pretty much non existent unless you’re very sensitive.

Great quality product for a more sustainable future. Will recommend to anyone.

The ultimate "long johns"

No male access hole

One would think it’s standard by now, that if you sell a male version and female version of pants, that the male version will have a pee hole.
Especially when wearing multiple layers. Untucking shirt, pulling down pants, untucking thermal top, pulling down thermal bottom, then underwear… all of this would be simplified with a standard access hole in the pants just like any other underwear you buy.
Sure, its a minor inconvenience, but an inconvenience that will make me choose to wear a different brand of thermals over these when dressing in the morning, and an inconvenience that will keep me from buying these again.
Unpleasant surprise. Hard to imagine this standard feature was overlooked in the design phase.

Hi Nick,
Thanks for your honest feedback! We appreciate you taking the time to share your experience. We understand how important functionality is, especially for layering in cold conditions. Your input is invaluable, and we'll be sure to pass it along to our design team for future improvements. We truly appreciate your support and hope we can continue to provide products that meet your needs. Let us know if there's anything else we can do for you!

Leggings

These leggings are fantastic, soft material and warm. I was so happy with them that this is my second pair.

Hi Greg,
We're so glad you love the leggings enough to get a second pair! 😊 Comfort and warmth are exactly what we aim for. Thank you for your support, and we hope you enjoy them on all your adventures!

mens leggings

these are the best legging I ever got. They meet all my expections.I highly recommend.

Hi Greg,
We're thrilled to hear that our leggings met all your expectations! Thank you for your high recommendation—we truly appreciate your support. Enjoy your leggings!

Great Baselayer!!

This is my first alpaca piece and I'll never go back to merino. I wanted relaxed fit and the specs are spot on. Great fit, breathable, and so soft... my wife tried this on and will be ordering for herself. No better recommendation than that!

Hi Steven,
We're thrilled to hear that your first alpaca piece has made such a great impression! It’s amazing that the fit and feel were just what you were looking for—and even better that your wife is joining in too! We look forward to her order.

perfect

beautiful piece: superb fabric, excellent build, great fit and functionality.

Hi Michael,

So happy to hear you're loving it! The combination of quality fabric, excellent craftsmanship, and great fit is exactly what we aim for. Thanks for sharing your feedback, and we hope you continue to enjoy it!

Colorado bound

Yes I give you guys a 5 star rating because my legging I purchased keep me very warm in Breckenridge Colorado. Temperature there were dipping down below zero at times. So I highly recommend this alpaca clothing very soft comfort. You guys Rock , keep up the good work.

Hi Willis, Thank you so much for the 5-star rating and your awesome feedback! We're thrilled to hear that our alpaca leggings kept you warm in those chilly Breckenridge temperatures, sounds like they did their job perfectly! We really appreciate your recommendation and kind words. We'll definitely keep up the good work!

Best Base Layer Ever

Always staying warm now. Very pleased! I plan on buying more in 2025.

Leggings

My husband wears them all the time fit is perfect very comfortable!! So far it’s his go to , to stay warm

Hi Mary Ellen, Thank you for sharing this lovely feedback! We're so happy to hear that your husband loves them. It’s wonderful to know they’ve become his go-to for staying warm. Thank you for choosing our product, and we hope he continues to enjoy them!

Leggings

I use this to hunt and the fit is great. Stays in place as a bottom base layer. My only complaint is after like 3 uses it has a small hole in the leg by my calf already. For the price it shouldn't have a hole.

Hi Jeffrey! Thank you for taking the time to share your feedback! We're happy to hear that the leggings fit well and work great as a base layer for hunting. However, we’re truly sorry to hear about the issue with the hole, this shouldn’t happen, especially so soon.

We understand your concern and agree that durability is important. Please don’t hesitate to reach out to us directly, we’d love to help resolve this for you and ensure you’re satisfied with your purchase.

Thank you again for bringing this to our attention, and we’re here to assist however we can!

Hubby uses all the time in the winter

Husband loves it for hunting! Great quality. Love that it is 100% alpaca wool and not mixed with synthetic materials.

Thank you for sharing your kind words! We're so glad to hear your husband loves it. Knowing he’s getting great use out of the 100% alpaca wool, and appreciating the quality, means a lot to us.

If you ever need anything else or have any questions, we’re always here to help. Stay warm, and thank you again for your support!

A review

I am enjoying the leggings and the half zip. I plan to order another pair of leggings .

The best part of leggins, definitively :D

Great leggings for men hallelujah!

These leggings fit amazingly, are the perfect weight and super soft and comfortable. Looking forward to collecting more pieces from Arms of Andes!

Great stuff!

5 stars!

Awesome

Fit great, super comfortable and warm, since ordered the 420 thicker pair also.

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Alpaca wool leggings

Love the warmth, feel and great for bicycle riding in twenty five degree early morning ride to work,22 miles,. Planing on buying a long sleeve tee.

Nice, could be better.

First off, I’m 5’10” and I weigh 175lbs. The medium legs are 4” too long. Also I guess the drawstring was removed. I’ve ordered tights in the past and there was a drawstring. I purchased these tights for backpacking, the drawstring is clutch. When your hiking 15-25 miles with a backpack you don’t want your pants falling down. The pants are soft and warm just like any wool long johns. I think with the hip a bit higher, improved elastic around the waist, shorter legs and a draw string these could become the perfect hiking tights for men.

Warm but Itchy

These leggings are wonderfully warm and great for cold weather, but they're a bit itchy. I'll keep the leggings, but I'm going to try to figure out how to make them less itchy.