Women's Alpaca Wool Panties

160 Ultralight

$52.00
4.3Rated 4.3 out of 5 18 reviews

A long day starts close to your skin. These women's panties use breathable, 160 g/m² Alpaca wool fabric in a fitted cut for everyday wear, hiking, and travel.

Low Impact Dyes

Black

Natural Dyes

Why natural?
Size: XSSize guide

This size is currently out of stock. Get notified when it's back.

Free US shipping on orders over $200.

Final sale for hygiene reasons. This intimate apparel can't be returned or refunded. Defective-item claims are handled separately under our warranty.

Keep your first layer light.

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

  • Soft fabric, close to your skin

    The fitted cut uses a light Alpaca knit for everyday next-to-skin wear.

  • Breathable on the move

    The light knit lets air move through, giving you a comfortable layer as you go from everyday miles to a change of pace.

Perfect for

  • Everyday wear
  • Outdoor activities
  • Travel
  • Designed as next-to-skin underwear.

Product details

What goes into your layer
  • Fabric100% Alpaca wool
  • Thread100% cotton
  • Labels100% organic cotton
  • DyesNatural or OEKO-TEX certified, depending on the color. Undyed colors have no added dye.
  • Label inkGOTS certified

Specifications

  • Fabric weight160 g/m²
  • Weight46 g / 1.6 oz in size S
  • ConstructionFitted panties in a 160 g/m² knit
  • 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.

SizeWaistHips
XS23 - 26 in31.5 - 34 in
S26 - 29 in34 - 37 in
M29 - 31.5 in37 - 40 in
L31.5 - 34 in40 - 42.5 in
XL34 - 37 in42.5 - 45 in
XXL37 - 40 in45 - 48 in
SizeWaistHips
XS59 - 66 cm80 - 87 cm
S66 - 73 cm87 - 94 cm
M73 - 80 cm94 - 101 cm
L80 - 87 cm101 - 108 cm
XL87 - 94 cm108 - 115 cm
XXL94 - 101 cm115 - 122 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.

For hygienic reasons, all underwear and intimate apparel (including boxers, panties, thongs, and bras) is final sale and cannot be returned or refunded.

Women's Alpaca Wool Panties: 160 Ultralight

The benefits

Why Alpaca wins

Alpacas en los Andes peruanos

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.

Comfort starts next to your skin

Alpaca wool brings breathable comfort to your first layer. Wash intimate apparel after wear to keep it clean; natural odor resistance doesn't replace regular care.

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

  • 5 stars: 13 (72%)
  • 4 stars: 2 (11%)
  • 3 stars: 0 (0%)
  • 2 stars: 1 (6%)
  • 1 star: 2 (11%)
E
Emy
Quality seems to be slipping

I've been ordering from here for a few years now, and my last order of sleep socks and undies was disappointing. After just one wear and wash, the socks are shredded with so many holes that they aren't even worth mending, what a waste! And the undies also have holes in them. These used to last a whole year but now just one wearing. I'm not what has changed, but it's no longer with the investment. Which bums me out as they are my favorite undies.

B
Bre
Feels Cheap

Me and my spouse have been having issues with products here for awhile, this pair is no different. They are not used in any rigorous activities, they break down super easily (even though on advertising it shows people hiking and such with these products). They do not feel anywhere close to being worth the amount being charged.

K
Kailey
Wish they had more options

I wish they had more than two panty options. I am on the quest to try different brands of natural fiber panties and these felt so well built however, the butt elastic is smaller than I’d like. I am thinking of ordering a size up but wondering if that will make the waist too big.

J
Jamie Fiene
Bad customer service

The company rep refused to hear my complaint that the bra and panty set was abnormally small and honor my request for an exchange for a much larger set. This was over $100 and I expected more. I won’t buy again.

T
Tania
Soft and comfortable!! The gloves hug the...

Soft and comfortable!! The gloves hug the fingers without constriction, the underwear don't ride and the tank is luxurious...all are true to size and fit as expected. Will definitely be buying from this store again !!!

L
Lesli
I love these!

I bought 1 pair in black last year (2024) and liked them so much I got 2 more in gray recently (2025). The more recent undies are a little less cheeky (which I prefer) but both are great and don't ride up. Really comfy, breathable, don't hold odor despite sweating/exercise or several wears during travel, fits true to size according to size chart. I wash them inside out in a small mesh bag in front loading machine (which is more gentle on clothes). I have also hand washed them and laid flat to dry. They dry quickly/overnight in Bay Area/NorCal and while traveling. Would highly recommend!

Hi Leslie
Thank you so much for your thoughtful comment and for continuing to trust our garments. We're delighted to hear that both pairs have worked well for you and that you've found them comfortable, breathable, and travel-friendly. We truly appreciate your support and recommendation!

A
Alvina
Material is soft and the stitching quality...

Material is soft and the stitching quality is great. Fit feels a tad small but just a tad.

F
Frances
Great product, wish the company would offe...

Great product, wish the company would offer bundles with a bit of a discount.

D
Danielle Rossetti
The best purchase.

Will be ordering more. Extremely comfortable, breathable and easy to wash.

Hi Danielle,

Sounds like you found a new favorite! We're so happy to hear you're loving it—comfort, breathability, and easy care are exactly what we aim for. Can't wait to have you back for more!

D
Dallas
Warm, comfortable, and well-made. Also cut...

Warm, comfortable, and well-made. Also cute!

j
jen
Love these!

I love these, esp cut and fabric (everyday wear/activities so far).

P
PK
Super comfortable for long days of travel or trail

These fit true to size and are super comfortable, in part because the leg openings don’t bind but also aren’t loose. They wash easily, using either a wool wash or a product like Soak (which doesn’t require rinsing) and dry by the next morning.

J
Jolita Robel
Great quality, runs true to size.

Great quality, runs true to size. Sits not too high, has good coverage (perfect for doctors appointments). I appreciate the fast delivery and prompt communication with the seller. Thank you

L
Laura Quick
Incredibly comfortable

Good coverage, feels like butter, and no stink either!

L
Linda Deal
Great fit and holds their shape.

I purchased 3 and am coming back for more. I can’t wait for the light colored bikinis to come in stock.

T
Tatyana Dulkin

Women's Alpaca Wool Panties: 110 Ultralight

J
John Waters
awesome

my wife loves them

C
Charlie
The material is very soft, the elastic has a lot of give and grip.

The material is very soft, the elastic has a lot of give and grip at the same time. Very comfortable and breathable. The backs are more of a cheeky style than full coverage. I recommend that the seller provide further images of front and back so people understand better what they are getting. That being said, i did read the reviews and anticipated this style based on some of the comments. I am happy with the product and would love to see something more full coverage on their site sometime. Thank you so much for making this great product!