Men's Alpaca Wool Fly Boxers

160 Ultralight

$64.00
3.7Rated 3.7 out of 5 3 reviews

Keep your first layer light and practical. These men's 160 g/m² Alpaca boxers add a fly opening to a breathable knit for everyday wear, hiking, and travel.

Low Impact Dyes

Black
Size: SSize guide

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.

Your first layer, with a practical opening.

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 fly where you need it

    The fly opening adds everyday convenience to an ultralight first layer.

  • 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
  • Hiking
  • Travel

Not for

  • Designed as next-to-skin underwear.

Product details

What goes into your layer
  • Fabric100% Alpaca wool
  • Thread100% cotton
  • Labels100% cotton
  • DyesLow-impact dyes for dyed colors.

Specifications

  • Fabric weight160 g/m²
  • Weight62 g / 2.2 oz in size M
  • ConstructionBoxers with a fly opening
  • 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
S28 - 31 in33 - 35 in
M31 - 34 in35 - 38 in
L34 - 36.5 in38 - 40.5 in
XL36.5 - 39.5 in40.5 - 43 in
XXL39.5 - 42 in43 - 46 in
SizeWaistHips
S72 - 79 cm84 - 89 cm
M79 - 86 cm89 - 96 cm
L86 - 93 cm96 - 103 cm
XL93 - 100 cm103 - 110 cm
XXL100 - 107 cm110 - 117 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.

Men's Alpaca Wool Fly Boxers: 160 Ultralight

Why Alpaca wins

Alpacas en los Andes peruanos

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.

Designed and made in one country

Peru, start to finish

A family company

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.

Peru, start to finish

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

3.67
Based on 3 reviews

Customer Reviews

Based on 3 reviews
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J
Jeff Wylde
Soft and comfortable

I ordered the boxers to replace the boxer briefs that were tight to my legs; I prefer the looser fit.

Thank you for your feedback! We’re glad to hear this style works well for you and that you’re enjoying the comfort and fit. We really appreciate you sharing your experience.

A
Anonymous
Disappointed

The product did not live up to the images online and description. While I love the 100% alpaca fabric, the length was much shorter than the images online. I was expecting a 6inch short, but it was more like 2inches or less. And the waist band seems flimsy. I was hoping it would be wider and more sturdy.

Hi There,
We are truly sorry to hear that the garment did not meet your expectations. While we’re glad you enjoyed the alpaca fabric, we completely understand your disappointment with the length and the waistband design. Your feedback is very valuable to us, and we will make sure to share it with our production team so we can improve the accuracy of our product descriptions and images.

H
Hans
Good fit, comfortable.

The Medium fits me just right, comfortable, functions the way it's supposed to. And best I've encountered at helping to get rid of the occasional rash "down there". Definitely 5 stars for me, in spite of the one 'con' which is that the waistband seemed to stay damp for a long time after the fabric had dried following the one wash it's had so far. I was going to buy 2 more pair, but my size is presently sold out.

Thank you for your thoughtful review! We’re glad to hear the fit and comfort hit the mark, and that it’s been effective for you. We appreciate your note about the waistband and will keep that in mind. Hopefully we’ll have your size back in stock soon so you can grab a couple more pairs!