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All REI Co-op Products

(650 products)

Products (650)

Sort: Best Match

REI Co-opLightweight Base Layer Crew Top - Men's
$9.83
Save 67%
compared to $29.95
108 reviews with an average rating of 4.3 out of 5 stars
REI Co-opPolartec Power Stretch Fleece Earband
$22.95
29 reviews with an average rating of 4.4 out of 5 stars
REI Co-opSwiftland Thermal Running Pants - Men's
$65.93
Save 30%
compared to $94.95
13 reviews with an average rating of 4.4 out of 5 stars
New arrival
REI Co-opSilk Liner Crew Socks - Seconds - 2 Pairs
$25.73
Save 24%
compared to $33.90
0 reviews
REI OUTLET
Top Rated
REI Co-opREI Logo Crew Sweatshirt
$26.83
Save 51%
compared to $54.95
26 reviews with an average rating of 4.5 out of 5 stars
REI Co-op'90s Logo Graphic T-Shirt
$16.83
Save 51%
compared to $34.95
3 reviews with an average rating of 4.3 out of 5 stars
REI Co-opLogo Sweatpants
$26.83
Save 51%
compared to $54.95
7 reviews with an average rating of 4.0 out of 5 stars
Staff Pick
REI Co-opMagma 850 Down Hoodie - Men's
$89.83
Save 63%
compared to $249.00
140 reviews with an average rating of 4.5 out of 5 stars
REI Co-opCOOLMAX EcoMade Lightweight Hiking Crew Socks - Seconds
$11.73
Save 34%
compared to $17.95
3 reviews with an average rating of 3.0 out of 5 stars
REI OUTLET
New arrival
REI Co-opMerino Wool Liner Crew Socks - Seconds - 2 Pairs
$22.73
Save 23%
compared to $29.90
0 reviews
REI OUTLET
REI Co-opOpt Out There Graphic T-Shirt
$16.83
Save 51%
compared to $34.95
2 reviews with an average rating of 4.0 out of 5 stars
New arrival
REI Co-opMerino Wool Lightweight Hiking Crew Socks - Seconds - 2 Pairs
$26.73
Save 25%
compared to $35.90
0 reviews
REI OUTLET
REI Co-opSwiftland Run Low Socks - Seconds
$9.73
Save 34%
compared to $14.95
6 reviews with an average rating of 2.3 out of 5 stars
REI OUTLET
REI Co-opSwiftland Grid Running Tank Top - Men's
$16.83
Save 51%
compared to $34.95
25 reviews with an average rating of 4.2 out of 5 stars
New arrival
REI Co-opMerino Wool Lightweight Hiking Quarter Socks - Seconds - 2 Pairs
$20.73
Save 25%
compared to $27.90
0 reviews
REI OUTLET
Top Rated
REI Co-opTrailsmith Fleece Jacket - Men's
$44.83
Save 50%
compared to $89.95
388 reviews with an average rating of 4.6 out of 5 stars
REI Co-opSwiftland Run Quarter Socks - Seconds
$10.73
Save 32%
compared to $15.95
7 reviews with an average rating of 3.7 out of 5 stars
REI OUTLET
REI Co-opTrailsmith Henley Shirt - Men's
$29.83
Save 50%
compared to $59.95
17 reviews with an average rating of 4.4 out of 5 stars
New arrival
REI Co-opCOOLMAX EcoMade Lightweight Hiking Quarter Socks - Seconds - 2 Pairs
$20.73
Save 25%
compared to $27.90
0 reviews
REI OUTLET
New arrival
REI Co-opMerino Wool Midweight Hiking Crew Socks - Seconds - 2 Pairs
$29.73
Save 25%
compared to $39.90
0 reviews
REI OUTLET
REI Co-opSahara 5-Panel Sun Hat
$33.73
Save 32%
compared to $49.95
3 reviews with an average rating of 4.0 out of 5 stars
REI OUTLET
REI Co-opFlash Stretch Rain Jacket - Men's
$49.83
Save 70%
compared to $169.00
78 reviews with an average rating of 3.9 out of 5 stars
New arrival
REI Co-opMerino Wool Expedition Hiking Crew Socks - Seconds - 2 Pairs
$34.73
Save 24%
compared to $45.90
0 reviews
REI OUTLET
New arrival
REI Co-opSwiftland TT Run Crew Socks - Seconds - 2 Pairs
$26.73
Save 25%
compared to $35.90
0 reviews
REI OUTLET
REI Co-opRetro Opt Outside Graphic Long-Sleeve T-Shirt
$19.83
Save 50%
compared to $39.95
8 reviews with an average rating of 4.4 out of 5 stars
REI Co-opSwiftland 3" Running Shorts - Women's
$29.83
Save 50%
compared to $59.95
33 reviews with an average rating of 4.4 out of 5 stars
Top Rated
REI Co-opMagma 850 Down Jacket - Men's
$79.83
Save 66%
compared to $239.00
21 reviews with an average rating of 4.5 out of 5 stars
REI Co-opCOOLMAX EcoMade Midweight Hiking Crew Socks - Seconds - 2 Pairs
$25.73
Save 24%
compared to $33.90
0 reviews
REI OUTLET
New arrival
REI Co-opCOOLMAX EcoMade Lightweight Hiking Crew Socks - Seconds - 2 Pairs
$22.73
Save 23%
compared to $29.90
1 reviews with an average rating of 1.0 out of 5 stars
REI OUTLET
New arrival
REI Co-opSwiftland Run Low Socks - Seconds - 2 Pairs
$22.73
Save 23%
compared to $29.90
0 reviews
REI OUTLET

541–570 of 650 products

Sort: Best Match

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

Waterproof vs. water-resistant

A waterproof jacket keeps out hard, driving rain
A water-resistant jacket can handle light rain for a brief time and is more breathable

Windproof vs. wind-resistant

Any waterproof jacket is also windproof to shield you in stormy weather
A wind-resistant jacket will offer much lighter protection

Hard shell vs. soft shell

Like a waterproof and windproof rain jacket, a hard shell will offer the most protection, but less breathability than a soft shell.

Do you need insulation?
For very cold rainy weather, consider an insulated shell, which will have down or synthetic fill for warmth while being waterproof and windproof.

Read full article: How to Choose Rainwear