Men's Alpaca Wool Leggings With Fly

160 Ultralight

$100.00
4.3Rated 4.3 out of 5 3 reviews

Start with full-length coverage and a practical fly. These men's leggings use a fitted 160 g/m² Alpaca knit that layers beneath outer pants without the weight of our heavier fabrics.

Only 4 left in this colour

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.

A full-length first layer with a fly.

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

  • Coverage under your outer pants

    The 160 g/m² knit sits close to your body, with a fly opening for everyday convenience.

  • Stretch from the knit

    The knit stretches naturally as you move, keeping a fitted layer comfortable through changing positions.

Perfect for

  • Hiking
  • Travel
  • Next-to-skin layering

Not for

  • Designed as next-to-skin underwear.

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 weight160 g/m²
  • ConstructionFull-length leggings 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.

SizeWaistHipsInseam
S28 - 31 in33 - 35 in29.5 - 31 in
M31 - 34 in35 - 38 in31 - 32 in
L34 - 36.5 in38 - 40.5 in32 - 32.5 in
XL36.5 - 39.5 in40.5 - 43 in32.5 - 34 in
XXL39.5 - 42 in43 - 46 in34 - 37 in
SizeWaistHipsInseam
S72 - 79 cm84 - 89 cm75 - 78 cm
M79 - 86 cm89 - 96 cm78 - 81 cm
L86 - 93 cm96 - 103 cm81 - 83 cm
XL93 - 100 cm103 - 110 cm83 - 86 cm
XXL100 - 107 cm110 - 117 cm86 - 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.

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 Leggings With Fly: 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

4.33
Based on 3 reviews

Customer Reviews

Based on 3 reviews
67%
(2)
0%
(0)
33%
(1)
0%
(0)
0%
(0)
J
Jeremy T
Good length and light feel, but fragile

I initially liked the softness and feel of these leggings. Unfortunately during the 3rd time I put them on, a 2inch hole ripped in the back hamstring while pulling up the waist! It was a bummer because it seemed like I wasn’t even trying to squeeze into them as I’m a pretty skinny build (32” waste and 38” inseam). Hoping they have some repair swatches so I can stitch a patch on?

H
Hans
Excellent "long johns"

Much lighter and more comfortable than traditional "long johns". I was able to try these in quite cold and windy weather recently, and in combination with regular trousers, I was able to walk and work in the storm, yet not become overheated when getting back into the house. A wider range of temperature comfort compared with either lined pants or with lighter pants over tradition long cotton underwear.

S
Syed Aslam Zahir

Great temperature control