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Travel Underwear

(511 products)

Products (511)

Sort: Best Match

StancePlaya Larga Boxer Briefs - Men's
$18.73
Save 25%
compared to $25.00
0 reviews
REI OUTLET
New arrival
FisheSports Bra
$39.73
Save 37%
compared to $64.00
0 reviews
REI OUTLET
IcebreakerMerino 260 Vertex Long-Sleeve Half-Zip Herenga Base Layer Top - Women's
$99.73
Save 33%
compared to $150.00
0 reviews
REI OUTLET
Kari TraaFryd Base Layer Pants - Women's
$32.73 - $44.73
Save 25% - 40%
compared to $55.00 - $60.00
14 reviews with an average rating of 3.7 out of 5 stars
REI OUTLET
SaxxTraining Shorts Liner - Men's
$29.73
Save 25%
compared to $40.00
0 reviews
REI OUTLET
ArtilectFlatiron 185 Base Layer Leggings - Men's
$109.73
Save 31%
compared to $160.00
0 reviews
REI OUTLET
SmartwoolIntraknit Thermal Merino Base Layer Bottoms - Women's
$97.73
Save 24%
compared to $130.00
27 reviews with an average rating of 4.3 out of 5 stars
REI OUTLET
Threads 4 ThoughtLunette Camo Print Sports Bra
$39.73
Save 31%
compared to $58.00
0 reviews
REI OUTLET
Top Rated
IcebreakerMerino 200 Oasis Long-Sleeve Crewe Thermal Top - Men's
$78.73
Save 25%
compared to $105.00
60 reviews with an average rating of 4.6 out of 5 stars
REI OUTLET
IcebreakerMerino Base Layer Leggings - Women's
$149.73
Save 25%
compared to $200.00
3 reviews with an average rating of 4.3 out of 5 stars
REI OUTLET
Kari TraaVar Printed Bra
$32.73
Save 28%
compared to $46.00
4 reviews with an average rating of 4.3 out of 5 stars
REI OUTLET
Boody Eco WearLYOLYTE Racerback Bra - Package of 2
$43.73
Save 18%
compared to $53.90
2 reviews with an average rating of 5.0 out of 5 stars
REI OUTLET
Kari TraaRose Base Layer Hoodie - Women's
$97.73
Save 24%
compared to $130.00
1 reviews with an average rating of 5.0 out of 5 stars
REI OUTLET
Top Rated
SmartwoolClassic Thermal Merino Base Layer Quarter-Zip - Men's
$89.73
Save 25%
compared to $120.00
15 reviews with an average rating of 4.9 out of 5 stars
REI OUTLET
Top Rated
Icebreaker260 ZoneKnit Base Layer Leggings - Men's
$119.73
Save 27%
compared to $165.00
9 reviews with an average rating of 4.8 out of 5 stars
REI OUTLET
Boody Eco WearLYOLYTE Hi-Cut Bikini Underwear - Package of 2 - Women's
$25.73
Save 19%
compared to $31.90
3 reviews with an average rating of 3.0 out of 5 stars
REI OUTLET
Helly HansenLIFA Merino Midweight 2-In-1 Base Layer Hoodie - Women's
$89.73
Save 25%
compared to $120.00
0 reviews
REI OUTLET
New arrival
Arc'teryxKyanite Base Layer Bottoms - Women's
$96.73
Save 19%
compared to $120.00
10 reviews with an average rating of 4.3 out of 5 stars
REI OUTLET
RONHILLSeamless Bra
$39.73
Save 20%
compared to $49.95
1 reviews with an average rating of 4.0 out of 5 stars
REI OUTLET
StanceInvestor Boxer Briefs - Men's
$22.73
Save 24%
compared to $30.00
3 reviews with an average rating of 4.7 out of 5 stars
REI OUTLET
SmartwoolIntraknit Thermal Merino Crew Base Layer Top - Women's
$97.73
Save 24%
compared to $130.00
119 reviews with an average rating of 4.3 out of 5 stars
REI OUTLET
Top Rated
Helly HansenLifa Merino Midweight Graphic Base Layer Top - Women's
$79.73 - $82.73
Save 24% - 27%
compared to $110.00
5 reviews with an average rating of 4.6 out of 5 stars
REI OUTLET
StanceSanta Rips Boxer Briefs - Men's
$22.73
Save 35%
compared to $35.00
0 reviews
REI OUTLET
StancePalmoflage Boxer Briefs - Men's
$19.73
Save 34%
compared to $30.00
4 reviews with an average rating of 4.5 out of 5 stars
REI OUTLET
Boody Eco WearBoyleg Briefs - Women's - Package of 2
$22.73
Save 18%
compared to $27.95
9 reviews with an average rating of 3.0 out of 5 stars
REI OUTLET
ArtilectFlatiron 185 Crew Base Layer Top - Men's
$96.73 - $109.73
Save 30% - 31%
compared to $140.00 - $160.00
0 reviews
REI OUTLET
Top Rated
IcebreakerMerino 200 Sonebula Long-Sleeve High-Neck Base Layer Top - Women's
$93.73
Save 25%
compared to $125.00
6 reviews with an average rating of 4.5 out of 5 stars
REI OUTLET
Top Rated
IcebreakerMerino 260 Tech Thermal Base Layer Leggings With Fly - Men's
$93.73
Save 25%
compared to $125.00
34 reviews with an average rating of 4.8 out of 5 stars
REI OUTLET
SmartwoolIntraknit Active Base Layer Bottoms - Men's
$82.73
Save 24%
compared to $110.00
1 reviews with an average rating of 3.0 out of 5 stars
REI OUTLET
IcebreakerMerino 200 Oasis Long-Sleeve Crewe Macro Forms Base Layer Top - Women's
$85.73
Save 25%
compared to $115.00
3 reviews with an average rating of 3.7 out of 5 stars
REI OUTLET

331–360 of 511 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

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