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REI Co-op Men's Bottoms

(34 products)

Products (34)

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REI Co-opSahara Stretch Convertible Pants - Men's
$69.93
Save 30%
compared to $99.95
23 reviews with an average rating of 4.3 out of 5 stars
REI Co-opSahara Convertible Pants - Men's
$89.95
843 reviews with an average rating of 4.2 out of 5 stars
REI Co-opTrailmade Pants - Men's
$69.95
436 reviews with an average rating of 4.4 out of 5 stars
REI Co-opTrailmade Shorts - Men's
$49.95
122 reviews with an average rating of 4.0 out of 5 stars
REI Co-opTrailmade Rain Pants - Men's
$49.93 - $69.95
59 reviews with an average rating of 4.4 out of 5 stars
Top Rated
REI Co-opActive Pursuits 7" Shorts - Men's
$39.95
24 reviews with an average rating of 4.8 out of 5 stars
REI Co-opSahara Cargo Shorts - Men's
$59.95
215 reviews with an average rating of 4.5 out of 5 stars
REI Co-opTrailmade Joggers - Men's
$48.93 - $69.95
201 reviews with an average rating of 4.4 out of 5 stars
REI Co-opTrailmade Amphib Shorts - Men's
$34.93 - $49.95
180 reviews with an average rating of 4.0 out of 5 stars
REI Co-opRainier Rain Pants - Men's
$99.95
41 reviews with an average rating of 4.5 out of 5 stars
Top Rated
REI Co-opXeroCloud 3L Rain Pants - Men's
$159.00
8 reviews with an average rating of 4.8 out of 5 stars
Top Rated
REI Co-opSwiftland 5" Running Shorts - Men's
$59.95
8 reviews with an average rating of 4.8 out of 5 stars
Top Rated
REI Co-opActivator Pants - Men's
$99.95
153 reviews with an average rating of 4.6 out of 5 stars
Top Rated
REI Co-opSwiftland 7" Running Shorts - Men's
$59.95
14 reviews with an average rating of 4.6 out of 5 stars
REI Co-opFirst Chair GTX Bibs - Men's
$79.83 - $133.83
Save 50% - 70%
compared to $269.00
37 reviews with an average rating of 3.9 out of 5 stars
Top Rated
REI Co-opTrailmade Fleece Pants - Men's
$59.95
97 reviews with an average rating of 4.6 out of 5 stars
Top Rated
REI Co-opActive Pursuits Midweight Joggers
$23.83 - $79.95
26 reviews with an average rating of 4.5 out of 5 stars
Top Rated
REI Co-opActive Pursuits 6" Shorts
$34.93 - $49.95
41 reviews with an average rating of 4.7 out of 5 stars
REI Co-opCampwell Workwear Pants - Men's
$79.95
0 reviews
Top Rated
REI Co-opSwiftland Hybrid Running Pants - Men's
$89.95
92 reviews with an average rating of 4.7 out of 5 stars
Top Rated
REI Co-opSwiftland 5" Running Shorts - Men's
$29.83
Save 50%
compared to $59.95
124 reviews with an average rating of 4.6 out of 5 stars
REI Co-opSwiftland 9" Running Short Tights - Men's
$54.95
17 reviews with an average rating of 4.4 out of 5 stars
REI Co-opActive Pursuits Pants - Men's
$69.95
4 reviews with an average rating of 5.0 out of 5 stars
REI Co-opHyperaxis Fleece Pants - Men's
$29.83
Save 70%
compared to $99.95
76 reviews with an average rating of 4.3 out of 5 stars
Top Rated
REI Co-opSwiftland Running Tights - Men's
$74.95
25 reviews with an average rating of 4.6 out of 5 stars
REI Co-opPowderbound Insulated Snow Pants - Men's
$78.83
Save 50%
compared to $159.00
91 reviews with an average rating of 4.1 out of 5 stars
REI Co-opHalf Dome Convertible Pants
$78.83
Save 50%
compared to $159.00
2 reviews with an average rating of 4.5 out of 5 stars
Top Rated
REI Co-opLogo Sweatpants
$54.95
6 reviews with an average rating of 4.5 out of 5 stars
Top Rated
REI Co-opSwiftland 7" Running Shorts - Men's
$29.83
Save 50%
compared to $59.95
164 reviews with an average rating of 4.5 out of 5 stars
REI Co-opFlash Hyperstretch Fleece Pants - Men's
$89.95
5 reviews with an average rating of 3.2 out of 5 stars

1–30 of 34 products

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Related Expert Advice articles

What material is best?

Wool is moisture-wicking and odor-resistant, while synthetic fabrics are more durable and less expensive.

Match the temp to the trek

Lightweight layers are best for moderate to cool temperatures. Midweight layers are best for cold temperatures. Heavyweight layers are best for below-freezing temperatures.

Find your fit

To be able to wick sweat efficiently, your next-to-skin layer needs to actually be next to your skin. A comfortably snug fit everywhere is your goal.

Read full article: How to Choose Base Layers

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