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Moisture Wicking Underwear

(356 products)

Products (356)

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Terramar3.0 Thermawool Base Layer Tights - Women's
$52.73
Save 24%
compared to $70.00
Members use code OUT4JUL25 for $20 off $100+ at REI Outlet
2 reviews with an average rating of 1.5 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular
REI OUTLET
Top Rated
IcebreakerMerino 260 Tech Long-Sleeve Half-Zip Base Layer Top - Men's
$135.00
36 reviews with an average rating of 4.5 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
Terramar2.0 Cloud Nine Midweight Base Layer Capri Pants - Women's
$28.73
Save 28%
compared to $40.00
Members use code OUT4JUL25 for $20 off $100+ at REI Outlet
1 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular
REI OUTLET
Arms of Andes300 Lightweight Alpaca Wool Base Layer Leggings - Men's
$105.00
12 reviews with an average rating of 4.3 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular, Big
ArtilectGoldhill 125 Zoned Crew Base Layer Top - Men's
$79.73
Save 38%
compared to $130.00
Members use code OUT4JUL25 for $20 off $100+ at REI Outlet
1 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular, Big
REI OUTLET
Free CountryMicrotech Heat Base Layer Top - Men's
$28.73
Save 36%
compared to $45.00
Members use code OUT4JUL25 for $20 off $100+ at REI Outlet
0 reviews
Underwear Weight:
Lightweight
Size Type:
Big
REI OUTLET
Arms of Andes160 Ultralight Alpaca Wool Crew Neck Base Layer T-Shirt - Women's
$75.00
2 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Ultralightweight
Size Type:
Regular
Helly HansenHH Durawool Crew Long-Sleeve Base Layer - Women's
$90.00
0 reviews
Underwear Weight:
Lightweight
Size Type:
Regular
Wild RyeJane Leggings - Women's
$64.73
Save 40%
compared to $109.00
Members use code OUT4JUL25 for $20 off $100+ at REI Outlet
3 reviews with an average rating of 3.3 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular
REI OUTLET
Ortovox120 Comp Light Base Layer Hoody - Men's
$120.00
2 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular
Arc'teryxRho Merino Wool Base Layer Bottoms - Men's
$96.93
Save 19%
compared to $120.00
5 reviews with an average rating of 3.4 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Big
Helly HansenOdin Power Stretch Half-Zip Base Layer Top - Women's
$88.73
Save 40%
compared to $150.00
Members use code OUT4JUL25 for $20 off $100+ at REI Outlet
1 reviews with an average rating of 1.0 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular
REI OUTLET
Kari TraaFloke Long-Sleeve Base Layer Top - Women's
$74.73
Save 25%
compared to $100.00
Members use code OUT4JUL25 for $20 off $100+ at REI Outlet
2 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular
REI OUTLET
IcebreakerMerino 200 Sonebula Long-Sleeve High-Neck Base Layer Top - Men's
$93.73
Save 25%
compared to $125.00
Members use code OUT4JUL25 for $20 off $100+ at REI Outlet
2 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular
REI OUTLET
Arms of Andes160 Ultralight Alpaca Wool Long-Sleeve Base Layer Shirt - Women's
$85.00 - $100.00
11 reviews with an average rating of 3.8 out of 5 stars
Underwear Weight:
Ultralightweight
Size Type:
Regular
ArtilectFlatiron 185 Base Layer Leggings - Women's
$109.73
Save 31%
compared to $160.00
Members use code OUT4JUL25 for $20 off $100+ at REI Outlet
1 reviews with an average rating of 4.0 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular
REI OUTLET
Kari TraaKlara High-Waisted Base Layer Pants - Women's
$62.73
Save 30%
compared to $90.00
Members use code OUT4JUL25 for $20 off $100+ at REI Outlet
1 reviews with an average rating of 3.0 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular
REI OUTLET
SeirusHeatwave All Season Reversible Long-Sleeve Base Layer Top - Women's
$36.83
Save 50%
compared to $75.00
0 reviews
Underwear Weight:
Lightweight
Size Type:
Regular
Kari TraaFryd Base Layer Pants - Women's
$37.73 - $44.73
Save 25% - 31%
compared to $55.00 - $60.00
Members use code OUT4JUL25 for $20 off $100+ at REI Outlet
15 reviews with an average rating of 3.5 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular
REI OUTLET
Helly HansenLifa Merino Midweight Base Layer Pants - Men's
$100.00
1 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Big
Kari TraaLune Long-Sleeve Base Layer Top - Women's
$41.73
Save 35%
compared to $65.00
Members use code OUT4JUL25 for $20 off $100+ at REI Outlet
2 reviews with an average rating of 3.0 out of 5 stars
Underwear Weight:
Heavyweight
Size Type:
Regular
REI OUTLET
Top Rated
Arms of Andes300 Lightweight Alpaca Wool Base Layer Leggings - Women's
$105.00
8 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular
Terramar2.0 Cloud Nine Midweight Performance Thermal Turtleneck - Women's
$32.73
Save 31%
compared to $48.00
Members use code OUT4JUL25 for $20 off $100+ at REI Outlet
0 reviews
Underwear Weight:
Midweight
Size Type:
Regular
REI OUTLET
SpraywayEffra Jacket Base Layer Top - Women's
$46.73
Save 28%
compared to $64.95
Members use code OUT4JUL25 for $20 off $100+ at REI Outlet
1 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Heavyweight
Size Type:
Regular, Plus
REI OUTLET
Ortovox120 Comp Light Short Base Layer Pants - Men's
$70.00
3 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular, Big
Icebreaker200 Sonebula Leggings - Men's
$89.73
Save 25%
compared to $120.00
Members use code OUT4JUL25 for $20 off $100+ at REI Outlet
4 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
REI OUTLET
Free CountryForce Grid Fleece Base Layer Bottoms - Women's
$34.73
Save 36%
compared to $55.00
Members use code OUT4JUL25 for $20 off $100+ at REI Outlet
3 reviews with an average rating of 4.7 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular
REI OUTLET
Ortovox185 Merino Rock'n'wool Long-Sleeve Base Layer Top - Men's
$110.00
10 reviews with an average rating of 4.2 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
Ortovox230 Competition Zip-Neck Base Layer Top - Men's
$120.00
3 reviews with an average rating of 3.7 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
The North FaceFD Pro 160 Base Layer Crew Top - Women's
$70.00
50 reviews with an average rating of 4.4 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular