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Men's R1® Thermal Bottoms

$279.95
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Men's R1® Thermal Bottoms
Men's R1® Thermal Bottoms
$279.95
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Size Guide

Men's Bottoms Sizing Information (Alpha)

Men's R1® Thermal Bottoms
Slim Fit
Men's R1® Thermal 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
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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.

*More Details

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*
Men's R1® Thermal Bottoms Highlights
  • Built for the coldest conditions, our Patagonia® Men's R1® Thermal Bottoms are made from our warmest technical fleece for soft, breathable, durable comfort
Technical fleece pants for the coldest alpine objectives, the R1® Thermal Bottoms are built to protect you from the elements and keep you warm while on the move. The interior microgrid backing is soft, warm and breathable, and the smooth, durable face fabric sheds wind or snow flurries when the weather rolls in. Made in a Fair Trade Certified™ factory.
SMDB | Style No. 40620
  • Slim Fit
  • For more information visit our Size Guide
Durable, Breathable Comfort
Smooth, durable outer face fabric sheds light snow and wind, and a soft microgrid-fleece backing wicks moisture to keep you warm and comfortable while moving in cold conditions
Stretchy Fabric Provides Freedom of Movement
Breathable, articulated and ultra-stretchy 91% recycled polyester Technostretch fabric provides unrestricted movement in the mountains
Low-Profile, Adjustable Waistband
Smooth waistband with a low-profile, internal drawcord provides an adjustable fit and is comfortable and easy to layer over
Pocket Features
Two zippered handwarmer pockets keep small items close and secure
Tapered Legs
Slim-fit leg tapers through to the ankle for foot visibility and easy layering
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 Sri Lanka.
Weight
332 g (11.7 oz)
6.5-oz 91% recycled polyester/9% spandex flat-faced Technostretch fleece
Made in a Fair Trade Certified™ factory
Care Instructions: Machine Wash Cold, Do Not Bleach, Tumble Dry Low, Do Not Iron

Men's R1® Thermal 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.
Learn more
Recycled Polyester

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

Material
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
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.
Learn more
Spandex

Spandex provides significant strength and elasticity and is fast drying.

Material
MAS Active (Pvt) Ltd. - Asialine
MAS Active (Pvt) Ltd. - Asialine
MAS Active (Pvt) Ltd. - Asialine
Sri Lanka
factory
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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