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Long Underwear

(398 products)

Products (398)

Sort: Best Match

REI Co-opMidweight Long-Sleeve Base Layer Top - Women's
$26.83 - $54.95
215 reviews with an average rating of 4.2 out of 5 stars
REI Co-opMidweight Base Layer Bottoms - Men's
$54.95
70 reviews with an average rating of 4.4 out of 5 stars
REI Co-opMidweight Base Layer Tights - Women's
$54.95
80 reviews with an average rating of 4.0 out of 5 stars
Top Rated
REI Co-opHeavyweight Merino Base Layer Bottoms - Women's
$99.95
13 reviews with an average rating of 4.5 out of 5 stars
SmartwoolClassic All-Season Merino Base Layer Bottoms - Women's
$90.00
12 reviews with an average rating of 4.3 out of 5 stars
Top Rated
SmartwoolClassic Thermal Merino Base Layer Bottoms - Men's
$115.00
577 reviews with an average rating of 4.7 out of 5 stars
SmartwoolClassic Thermal Merino Base Layer Bottoms - Women's
$115.00 - $120.00
705 reviews with an average rating of 4.5 out of 5 stars
REI Co-opMidweight Long-Sleeve Base Layer Top - Men's
$54.95
132 reviews with an average rating of 4.5 out of 5 stars
SmartwoolClassic All-Season Merino Long-Sleeve Base Layer Top - Women's
$90.00
95 reviews with an average rating of 4.3 out of 5 stars
REI Co-opMidweight Base Layer Bottoms - Kids'
$34.95
4 reviews with an average rating of 4.8 out of 5 stars
REI Co-opMerino 185 Long-Sleeve Base Layer Top - Women's
$79.95
178 reviews with an average rating of 4.5 out of 5 stars
Top Rated
PatagoniaCapilene Midweight Base Layer Bottoms - Men's
$61.93 - $89.00
51 reviews with an average rating of 4.6 out of 5 stars
REI Co-opMerino 185 Base Layer Bottoms - Women's
$79.95
97 reviews with an average rating of 4.2 out of 5 stars
REI Co-opMerino 185 Base Layer Bottoms - Men's
$79.95
106 reviews with an average rating of 4.4 out of 5 stars
NRSExpedition Union Suit - Women's
$159.95
0 reviews
REI Co-opLightweight Base Layer Bottoms - Men's
$19.83
Save 50%
compared to $39.95
78 reviews with an average rating of 4.3 out of 5 stars
REI Co-opLightweight Base Layer Tights - Women's Plus Sizes
$27.93
Save 30%
compared to $39.95
11 reviews with an average rating of 4.2 out of 5 stars
REI Co-opMidweight Base Layer Crew Top - Kids'
$34.95
1 reviews with an average rating of 5.0 out of 5 stars
Top Rated
PatagoniaCapilene Midweight Crew Base Layer Top - Men's
$61.93 - $89.00
69 reviews with an average rating of 4.5 out of 5 stars
Top Rated
REI Co-opMerino 185 Long-Sleeve Base Layer Top - Men's
$79.95
152 reviews with an average rating of 4.6 out of 5 stars
SmartwoolIntraknit Thermal Merino Base Layer Bottoms - Men's
$130.00
16 reviews with an average rating of 4.3 out of 5 stars
Arc'teryxKyanite Base Layer Bottoms - Women's
$120.00
8 reviews with an average rating of 4.4 out of 5 stars
Top Rated
REI Co-opMidweight Base Layer Half-Zip Top - Men's
$59.95
116 reviews with an average rating of 4.6 out of 5 stars
SmartwoolClassic All-Season Merino Base Layer Bottoms - Men's
$90.00
11 reviews with an average rating of 3.5 out of 5 stars
Top Rated
REI Co-opHeavyweight Merino Long-Sleeve Base Layer Crew Top - Women's
$99.95
14 reviews with an average rating of 4.5 out of 5 stars
Arc'teryxRho LT Base Layer Bottoms - Men's
$100.00
42 reviews with an average rating of 4.4 out of 5 stars
New arrival
REI Co-opLightweight Base Layer Bottoms - Men's
$39.95
0 reviews
Icebreaker260 Tech High-Rise Base Layer Leggings - Women's
$125.00
2 reviews with an average rating of 5.0 out of 5 stars
Top Rated
IcebreakerMerino 200 Oasis Long-Sleeve Crewe Thermal Top - Men's
$105.00
71 reviews with an average rating of 4.6 out of 5 stars
Top Rated
IcebreakerMerino 200 Oasis Base Layer Leggings with Fly - Men's
$105.00
30 reviews with an average rating of 4.7 out of 5 stars

1–30 of 398 products

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