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Men's Nano-Air® Light Bottoms

$399.95
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Men's Nano-Air® Light Bottoms
Men's Nano-Air® Light Bottoms
$399.95
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Size Guide

Men's Bottoms Sizing Information (Alpha)

Men's Nano-Air® Light Bottoms
Slim Fit
Men's Nano-Air® Light Bottoms
Size Chart
Fit Guide
cm in Waist Inseam
XX-Small 26 31
X-Small 28 31
Small 29 31
Small 30 31
Medium 31 32
Medium 32 32
Medium 33 32
Large 34 33
Large 35 33
Large 36 33
X-Large 38 33
X-Large 40 33
XX-Large 42 33
XX-Large 44 33
XXX-Large 46 33
XXX-Large 48 33
CM = Centimeters IN = Inches
Measurements refer to body size, not garment dimensions, and are in inches, unless otherwise noted.
* Inseam will vary depending on style; when lengths are offered, "short" is 30, "regular" is 32 and "long" is 34, unless otherwise noted.

Though each Patagonia® product is designed and shaped specifically for its intended use, we can generalize our fit descriptions in four ways:

Formfitting

Conforms to the body's contours.

Slim Fit

Closer-fitting. Slim-fitting technical garments may be worn over baselayers and light midlayers.

Regular Fit

Neither slim nor oversized. Regular-fitting technical garments may be worn over heavier midlayers.

Relaxed Fit

Drapes loosely on the body.


Measurements refer to body size, not garment dimensions.

Contact Us

Still unsure which size is right for you? Reach us via email or phone.

AU: 1800 326 889
Monday - Friday 8:00am - 5:30pm AEST

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Returns & Exchanges

If the size isn’t quite right, we can happily exchange, refund or supply a store credit for any online order that has not been worn and still has tags attached.

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Find in Store
Slim Fit | All sizes are US
Size Guide
This size is out of stock. Get notified if it becomes available. *Not all sizes are guaranteed to be restocked. Learn More
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Free Standard Shipping on Orders Over $150*

We do our best to process and ship orders within 1-2 business days. Please keep in mind that we get backlogged during sales or the holiday season and it could take longer. If you have any questions about your order, please contact our friendly Customer Service team and we'll be glad to help.

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Returns & Exchanges

We accept both current season and sale items for return or exchange. We do not set a time limit on returns, though we ask that returns for fit or color be made in a timely manner and that items be kept in new condition with tags attached.

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We Guarantee Everything We Make

If you are not satisfied with one of our products at the time you receive it, or if one of our products does not perform to your satisfaction, our Ironclad Guarantee allows you to return it for a replacement or refund at no charge. For any wear and tear repair requests please check out our assessment form here.

Free Shipping on Orders over $150*
Free returns & exchanges*
Ironclad guarantee. Free product lifetime repair*
Free Shipping on Orders over $99*
Free returns & exchanges*
Ironclad guarantee. Free product lifetime repair*
Men's Nano-Air® Light Bottoms Highlights
  • Our warm, stretchy and breathable Patagonia® Men's Nano-Air® Light Bottoms shed excess heat when you’re moving fast and keep you warm when you’re not
Unlike any midlayer bottoms you've ever worn, the Nano-Air® Light Bottoms deliver warm, stretchy and breathable performance for moving fast in cold climates. Inseam length is 31". Made in a Fair Trade Certified™ factory.
BLK | Style No. 82890
  • Slim Fit
  • For more information visit our Size Guide
Breathable, Stretchy Fabric
Light yet durable 100% recycled polyester ripstop shell and lining offer generous mechanical stretch and exceptional breathability, with a durable water repellent (DWR) finish made without perfluorinated chemicals (PFCs/PFAS) to shed moisture
Revolutionary Insulation
Revolutionary 40-g FullRange® insulation is warm and stretchy, and combined with the shell and lining, creates pants with excellent stretch and unprecedented air permeability
Made for Movement
Slim-fitting and patterned to reduce bulky seams and maximize mobility
Harness Compatible
Pull-on pants with a smooth, stretchy waistband and an internal drawcord adjustment layer comfortably under a harness
Pocket Features
Zippered right-thigh pocket stays out of the way of harness leg loops
Cuff Features
Cuffs feature quick-drying recycled nylon/spandex knit for enhanced stretch and movement, and push up easily to stretch over or tuck into alpine boots
Supporting the People Who Made This Product
Made in a Fair Trade Certified™ factory, which means the people who made this product earned a premium for their labor
Country Of Origin
Made in Vietnam.
Weight
249 g (8.8 oz)
Shell and lining: 1.6-oz 30-denier 100% recycled polyester air-permeable shadow stretch ripstop with a durable water repellent (DWR) finish made without perfluorinated chemicals (PFCs/PFAS)
Panels and cuffs: 5.8-oz 74% NetPlus® postconsumer recycled nylon made from recycled fishing nets to help reduce ocean plastic pollution/26% spandex power-stretch knit with miDori™ bioSoft for added wicking and softness, and HeiQ® Pure odor control
Insulation: 40-g FullRange® 100% polyester (93% recycled)
Panel and cuff fabric is certified as bluesign® approved
Made in a Fair Trade Certified™ factory
Care Instructions: Machine Wash Warm, Do Not Bleach, Tumble Dry Low, Cool Iron

Men's Nano-Air® Light Bottoms Reviews

Everything we make has an impact on the planet.

How it’s made
Where it’s made
Recycled Polyester
Recycled Polyester
Recycled Polyester
Using polyester fiber made from plastic bottles reduces CO2 emissions by 59% compared to virgin polyester fiber.
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Recycled Polyester

Recycled polyester lessens our dependence on virgin petroleum-based materials.

Material
Patagonia uses HeiQ® Fresh, a silver-ion-based odor-control additive, so you can wear garments more and need to wash them less.
Patagonia uses HeiQ® Fresh, a silver-ion-based odor-control additive, so you can wear garments more and need to wash them less.
Patagonia uses HeiQ® Fresh, a silver-ion-based odor-control additive, so you can wear garments more and need to wash them less.
Odor-control additives block or prevent the growth of odor-causing microbes.
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Patagonia uses HeiQ® Fresh, a silver-ion-based odor-control additive, so you can wear garments more and need to wash them less.

Patagonia uses HeiQ® Fresh, a silver-ion-based odor-control additive, so you can wear garments more and need to wash them less.

Odor Control
Bluesign®
Bluesign®
Bluesign®
As more brands, manufacturers and chemical suppliers become bluesign® system partners, we will continue to reduce the harmful environmental impacts of the global textile supply chain.
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Bluesign®

bluesign works in the supply chain to approve products that are safe for the environment, workers and customers.

Program
Fair Trade
Fair Trade
Fair Trade
Our first step on the path toward ensuring living wages in our supply chain.
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Fair Trade

There are now more than 50 Fair Trade Certified™ factories that specialise in outdoor clothing. More companies joining this movement will make a positive impact on workers’ lives.

Program
Recycled Nylon
Recycled Nylon
Recycled Nylon
By using recycled nylon, we lessen our dependence on petroleum as a raw material source and curb discards.
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Recycled Nylon

We use recycled nylon made from post-industrial waste fiber and discards from weaving mills and postconsumer fishing nets.

Material
Spandex
Spandex
Spandex
We are looking for recycled spandex options and technology that avoids the use of DMAc (dimethylacetamide), a solvent deemed of very high concern by the EU because of its reproductive toxicity.
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Spandex

Spandex provides significant strength and elasticity and is fast drying.

Material
PFC-Free
PFC-Free
PFC-Free
In Spring 2023, 66% of Patagonia’s materials with water-repellent chemistries are PFC-Free, reducing our impact on the health of people and planet.
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PFC-Free

We’re working to convert all our water-repellent finishes to non-fluorinated versions by 2024.

Material
PTFE (Polytetrafluoroethylene)
PTFE (Polytetrafluoroethylene)
PTFE (Polytetrafluoroethylene)
We’re taking a collaborative approach with our ePTFE (expanded polytetrafluoroethylene) manufacturers to ensure that we are leading the industry in better practices.
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PTFE (Polytetrafluoroethylene)

This waterproof/breathable membrane is critical for all-weather use, yet it uses a lot of energy and chemicals.

Material
Teijin Frontier Co., Ltd.
Teijin Frontier Co., Ltd.
Teijin Frontier Co., Ltd.
Japan
mill
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Kwang Viet Garment Co., Ltd
Kwang Viet Garment Co., Ltd
Kwang Viet Garment Co., Ltd
Vietnam
factory
Learn More

Related Categories

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Free Shipping on Orders over $150*
We do our best to process and ship orders within 1-2 business days.
More Details
Returns & Exchanges
We accept both current season and sale items for return or exchange.
More Details
We Guarantee Everything We Make
If you are not satisfied with one of our products at the time you receive it, or if one of our products does not perform to your satisfaction, return it to the store you bought it from or to Patagonia for a repair, replacement, or refund.
More Details