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Base Layer Tops

(258 products)

Products (258)

Sort: Best Match

Helly HansenOdin Power Stretch Half-Zip Base Layer Top - Women's
$88.73
Save 40%
compared to $150.00
1 reviews with an average rating of 1.0 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular
REI OUTLET
Helly HansenLIFA Merino Midweight Balaclava Base Layer Hoodie - Women's
$111.93 - $150.00
0 reviews
Underwear Weight:
Midweight
Size Type:
Regular
SmartwoolThermal Merino Base Layer Hoodie - Men's
$145.00
1 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular
SmartwoolIntraknit Active Base Layer Top - Men's
$110.00
1 reviews with an average rating of 4.0 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular
CraftCore Dry Base-Layer Set - Men's
$43.73
Save 41%
compared to $74.95
6 reviews with an average rating of 4.0 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular
REI OUTLET
CraftActive Intensity Zip Base Layer Top - Women's
$54.73
Save 31%
compared to $79.95
3 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular
REI OUTLET
Top Rated
IcebreakerMerino 260 Tech Long-Sleeve Turtleneck Base Layer - Men's
$135.00
8 reviews with an average rating of 4.6 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Big
ArtilectFlatiron 185 Base Layer Crew Top - Men's
$41.83
Save 70%
compared to $140.00
8 reviews with an average rating of 4.4 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular
Top Rated
ArtilectBoulder 125 Quarter-Zip Base Layer Top - Men's
$38.83
Save 70%
compared to $130.00
6 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular
Wild RyeEvie Raglan Base Layer Top - Women's
$69.73
Save 41%
compared to $119.00
3 reviews with an average rating of 4.7 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular
REI OUTLET
SmartwoolClassic Thermal Merino Base Layer Hoodie - Men's
$104.73
Save 27%
compared to $145.00
3 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular
REI OUTLET
REI Co-opLightweight Base Layer Crew Top - Women's Plus Sizes
$9.83
Save 67%
compared to $29.95
10 reviews with an average rating of 4.3 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Plus
REI Co-opLightweight Base Layer Crew Top - Women's
$9.83
Save 67%
compared to $29.95
50 reviews with an average rating of 4.4 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular
Top Rated
SmartwoolMerino 250 Asymmetric Base Layer Top - Women's
$87.73
Save 29%
compared to $125.00
32 reviews with an average rating of 4.7 out of 5 stars
Size Type:
Regular
REI OUTLET
Helly HansenLifa Merino Midweight Base Layer Crew Top - Women's
$100.00
0 reviews
Underwear Weight:
Midweight
Size Type:
Regular
SmartwoolIntraknit Thermal Merino Pattern Crew Base Layer Top - Women's
$90.93
Save 30%
compared to $130.00
82 reviews with an average rating of 4.4 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular
Helly HansenHH Lifa Active Crew Base Layer Top - Women's
$39.73
Save 33%
compared to $60.00
3 reviews with an average rating of 4.3 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular
REI OUTLET
Top Rated
Helly HansenHH Lifa Active Crew Base Layer Top - Men's
$44.73
Save 25%
compared to $60.00
8 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular
REI OUTLET
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
Underwear Weight:
Lightweight
Size Type:
Regular
Free CountryMicrotech Heat Cocaber Base Layer Top - Men's
$26.73
Save 33%
compared to $40.00
2 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Big
REI OUTLET
Free CountryMicrotech Heat Base Layer Top - Men's
$28.73
Save 36%
compared to $45.00
0 reviews
Underwear Weight:
Lightweight
Size Type:
Big
REI OUTLET
Kari TraaLune Long-Sleeve Base Layer Top - Women's
$48.73
Save 25%
compared to $65.00
2 reviews with an average rating of 3.0 out of 5 stars
Underwear Weight:
Heavyweight
Size Type:
Regular
REI OUTLET
Helly HansenLifa Active Graphic Crew Base Layer Top - Women's
$48.73
Save 25%
compared to $65.00
3 reviews with an average rating of 4.0 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular
REI OUTLET
Free CountryForce Grid Fleece Crew Base Layer Top - Men's
$31.73
Save 29%
compared to $45.00
4 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular, Big
REI OUTLET
Top Rated
SmartwoolClassic Thermal Merino Crew Base Layer Top - Men's
$86.73
Save 24%
compared to $115.00
273 reviews with an average rating of 4.7 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Big, Regular
REI OUTLET
Terramar4.0 Genesis Crew Base Layer Top - Women's
$24.73
Save 29%
compared to $35.00
1 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Heavyweight
Size Type:
Regular
REI OUTLET
Top Rated
CotopaxiLiso Base Layer Top - Men's
$48.73
Save 25%
compared to $65.00
37 reviews with an average rating of 4.9 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
REI OUTLET
Free CountryForce Grid Fleece Base Layer Top - Men's
$29.73
Save 33%
compared to $45.00
4 reviews with an average rating of 4.5 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular, Big
REI OUTLET
ArtilectGoldhill 125 Zoned Crew Base Layer Top - Men's
$89.73
Save 30%
compared to $130.00
1 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular, Big
REI OUTLET
Kari TraaRose Light Half-Zip Base Layer Top - Women's
$89.73
Save 25%
compared to $120.00
1 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular
REI OUTLET