Men's Thermal Bottoms

$97
$139
$97
Final Sale
Final Sale
Final Sale
Final Sale
Final Sale
Men's Thermal Baselayer Bottoms for Skiing and Winter in Clay Red – PAKA Apparel Front view of men’s alpaca thermal baselayer bottoms in clay red showing slim fit and elastic waistband on light background Rear View of Alpaca-Merino Wool Thermal Baselayer Pants in Clay Red on Model – PAKA Apparel Three-quarter view of men’s alpaca baselayer thermal bottoms in clay red showing slim full-length fit on a light studio background Men's Thermal Baselayer Bottoms for Skiing and Winter in Clay Red – PAKA Apparel Front view of men’s alpaca thermal baselayer bottoms in clay red showing slim fit and elastic waistband on light background Rear View of Alpaca-Merino Wool Thermal Baselayer Pants in Clay Red on Model – PAKA Apparel Three-quarter view of men’s alpaca baselayer thermal bottoms in clay red showing slim full-length fit on a light studio background
  • Men's Thermal Baselayer Bottoms for Skiing and Winter in Clay Red – PAKA Apparel
    Final Sale
  • Front view of men’s alpaca thermal baselayer bottoms in clay red showing slim fit and elastic waistband on light background
  • Rear View of Alpaca-Merino Wool Thermal Baselayer Pants in Clay Red on Model – PAKA Apparel
  • Three-quarter view of men’s alpaca baselayer thermal bottoms in clay red showing slim full-length fit on a light studio background

Men's Thermal Bottoms

$97
$139
$97
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Colors
Color
Clay
Size

mens

Find Men’s size charts for tops and bottoms. Plus, a few tips on how to measure for the best fit

Size Chart

Men's Size
XS
S
M
L
XL
XXL
Chest
34-36"
36-38"
38-40"
41-43"
44-46"
47-49"
Arm Length
32-33"
32 1/2-33 1/2"
33-34"
34-35"
35-36"
36-37"
Waist
28-30"
30-32"
32-34"
35-37"
38-40"
41-43"
Hip
33-35"
35-37"
37-39"
40-42"
43-45"
46-48"
Inseam Length
29-31"
30-32"
30-32"
31-33"
31-33"
31-33"
Men's Size
XS
S
M
L
XL
XXL
Chest
86-91
91-97
97-102
104-109
112-117
119-124
Arm Length
81.2-83.8
82.5-85
83.8-86.4
86.4-89
89-91.4
91.4-94
Waist
71-76
76-81
81-86
89-94
97-102
104-109
Hip
84-89
89-94
94-99
102-107
109-114
117-122
Inseam Length
74-79
76-81
76-81
79-84
79-84
79-84

*Tops: Chest is usually the best size predictor. However, if your hip measurement is larger, consider buying the size indicated for your hips.

View Full Size & Fit Guide Did we mention free returns & exchanges?

Fit Guide

Next to Skin

A snug and form fitting feeling, the perfect 
close to body fit.

Slim

A body skimming fit, can be a stand alone athletic look or a base for layering

Regular

Not too fitted, not too loose everyday pieces that can be layered over or under multiple items.

Relax

Loose fitting top layer items for a relaxed feeling.

Length Guide

Men's Length Guide

Choose between classic and long classic lengths to get the tailored look and perfect coverage that fits your style.

How to Measure

Use a soft, flexible measuring tape. Measure directly on your skin or over light clothing. If you don't have a flexible measuring tape, you can use a piece of string by wrapping it around the area you're measuring, marking the spot where it meets, and then lay it flat on a ruler to measure. Alternatively, you can measure a well-fitting piece of clothing with a regular tape measure and compare the measurements to your body.

1 Arm length
With elbows slightly bent, measure from the center back of neck (at the base), across the top of the shoulders, down the arm, to the wrist. Keep your arm relaxed and slightly bent while measuring.

2 Chest
Measure around the fullest part of your chest, keeping the tape parallel to the ground and comfortably under your arms. Make sure the tape is snug, but not tight. Relax your arms by your sides while measuring.

3 Waist
Measure around the narrowest part of your waist, usually just above your belly button (This will be the crease created from bending). Stand naturally and keep the tape a bit loose. Don’t suck in your stomach.

4 Hips
Measure around the fullest part of hip/seat circumference below your natural waistline. Stand with your feet together and make sure the tape is parallel to the floor and comfortably snug.

5 Inseam (pants)
Measure along the inside leg from crotch to ankle. Stand straight with your feet slightly apart.

This item is final sale not eligible for returns or exchanges.

When you purchase a PAKA product, you are supporting 300+ women artisans in Peru.

Why you'll love this

  • Easy-to-layer with improved slimmer fit
  • Breathable and odor-resistant earth-friendly materials
  • Gusseted crotch panel for movement and comfort
  • Soft yet sturdy waist elastic
  • Flat coverstitch seams for comfort and strength
  • Made with Traceable Alpaca Fiber

Details

Build up the warmth with our Thermal Collection—made to keep things cozy, comfortable, and even stink-free thanks to earth-friendly ingredients and adventure-enhancing design. These alpaca wool thermal baselayer pants for men feature a new and improved yarn blend to maximize durability and softness, while the updated slimmer fit makes for easy layering. From the soft and sturdy elastic waistband to the flat coverstitches, nothing is digging into your skin here. The gusseted crotch also adds comfort and freedom to move in these thermal bottoms. 

  • For

    Backcountry skiing, snowboarding, snow shoeing, winter hikes, cold weather adventures

  • Materials

    40% Royal Alpaca, 40% Merino Wool, 20% Tencel

  • Fit

    Slim

  • Model Specs

    Victor is 6'2, waist 32" and wearing a size M

Wash & Care Instructions

  • Wash

    Machine wash cold on gentle cycle, do not bleach, do not wring

  • Dry

    Lay flat to dry, cool iron if needed

Country of Origin

Peru Peru Peru Peru Peru

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See our fit on real people

  • , 1 of 4

Matias is 5’7 wearing size M

Feel The Difference

01

Warmth to weight

With a higher warmth-to-weight ratio than both synthetics and 100% merino, these natural fiber thermals are the ideal layering piece to ensure warmth without unnecessary bulk.
02

Natural stretch

While creating these baselayers from 100% natural-based fibers, we needed to create reliable recovery and stretch without the use of plastics. Our 2x2 Rib Knit attractively achieves that.
03

Flatlock seams + tagless

Our ultra-soft fabric is complemented by flatlock seams to avoid abrasion during high aerobic activity.
Close-up of black women’s thermal top hem stretched to show rib knit and flatlock seam on neutral background
Close-up of a black women’s thermal top sleeve showcasing a thumb hole and flatlock stitching against a light background
Close-up front view of women’s black thermal top showing ribbed crew neck, raglan shoulder seam, knit texture, and small sleeve logo
04

Traceable

Made with fully Traceable Alpaca ™, each piece comes with a scannable hang tag to trace the exact location where its natural fiber was sourced from alpacas.
05

All natural-based fibers

Our thermal baselayers feature a blend of alpaca, merino wool, and eucalyptus-derived tencel. We use Royal Alpaca, which is our softest micron range (17-19 microns). Wearing both tops and bottoms ensures you are protecting your skin with only natural fibers touching your body (no matter what you layer with).
Waist-level close view of men’s thermal baselayer bottoms showcasing PAKA elastic waistband and front fly on black fabric

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Did we mention free shipping and exchanges?

Yep! And if you're not on cloud nine after 30 days, we'll take your pants back - no questions asked.

 
Illustration of Sebastian the Alpaca Surfing and Saying “Ride It!” – PAKA Apparel
Close-up portrait of a brown alpaca facing the camera with a plain white background

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A women wearing The Vida hugging two alpacas