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Underwear

(464 products)

Products (464)

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SmartwoolIntraknit Merino 3/4 Base Layer Bottoms - Women's
$89.73
Save 25%
compared to $120.00
Members use code OUT4JUL26 for $20 off $100+ at REI Outlet thru 7/6.
0 reviews
Underwear Weight:
Midweight
Size Type:
Regular
REI OUTLET
Boody Eco WearPadded Shaper Bra - Package of 2
$35.73
Save 18%
compared to $43.95
Members use code OUT4JUL26 for $20 off $100+ at REI Outlet thru 7/6.
27 reviews with an average rating of 4.1 out of 5 stars
Bra Support:
Medium Impact
Support Style:
Compression
Fabric:
80% viscose made from bamboo/13% nylon/7% spandex
REI OUTLET
SmartwoolIntraknit AS Merino Base Layer Crew Top - Women's
$125.00
2 reviews with an average rating of 3.5 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular
prAnaTornado Bra
$44.73
Save 30%
compared to $64.00
Members use code OUT4JUL26 for $20 off $100+ at REI Outlet thru 7/6.
73 reviews with an average rating of 4.3 out of 5 stars
Bra Support:
Low Impact
Support Style:
Compression / Encapsulation
Fabric:
90% organic cotton/10% elastane
REI OUTLET
Superfit HeroSuperHold Racerback Sports Bra
$69.00
0 reviews
Bra Support:
High Impact
Support Style:
Compression
Fabric:
88% polyester/12% spandex
Top Rated
REI Co-opMerino Bralette
$44.95
199 reviews with an average rating of 4.6 out of 5 stars
Bra Support:
Low Impact
Support Style:
Encapsulation
Fabric:
48% merino wool/32% TENCEL lyocell/15% nylon/5% LYCRA spandex
SmartwoolIntraknit Thermal Merino Base Layer Bottoms - Women's
$150.00
30 reviews with an average rating of 4.2 out of 5 stars
Underwear Weight:
Heavyweight
Size Type:
Regular
Kari TraaVar Sports Bra
$26.73
Save 40%
compared to $45.00
Members use code OUT4JUL26 for $20 off $100+ at REI Outlet thru 7/6.
1 reviews with an average rating of 1.0 out of 5 stars
Bra Support:
Low Impact
Support Style:
Compression
Fabric:
Main: 86% polyester/14% elastane; 2nd: 92% polyester/8% elastane
REI OUTLET
SmartwoolIntraknit Thermal Merino Colorblock Crew Base Layer Top - Men's
$130.00
14 reviews with an average rating of 4.1 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular, Big
SmartwoolClassic Thermal Merino 3/4 Base Layer Bottoms - Men's
$78.73
Save 25%
compared to $105.00
Members use code OUT4JUL26 for $20 off $100+ at REI Outlet thru 7/6.
0 reviews
Underwear Weight:
Midweight
Size Type:
Regular, Big
REI OUTLET
SmartwoolIntraknit Thermal Merino Base Layer Hoodie - Men's
$134.73
Save 25%
compared to $180.00
Members use code OUT4JUL26 for $20 off $100+ at REI Outlet thru 7/6.
2 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
REI OUTLET
Icebreaker125 ZoneKnit Crewe Base Layer Shirt - Women's
$84.73
Save 26%
compared to $115.00
Members use code OUT4JUL26 for $20 off $100+ at REI Outlet thru 7/6.
1 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular
REI OUTLET
tasc PerformanceElevation Merino T-Shirt - Women's
$44.73
Save 43%
compared to $79.00
Members use code OUT4JUL26 for $20 off $100+ at REI Outlet thru 7/6.
97 reviews with an average rating of 4.4 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular
REI OUTLET
Top Rated
IcebreakerMerino 260 Tech Long-Sleeve Half-Zip Base Layer Top - Men's
$135.00
51 reviews with an average rating of 4.5 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
New arrival
BrooksLuxe Pocket Bra
$55.00
0 reviews
Bra Support:
Medium Impact
Support Style:
Compression
Fabric:
77% recycled polyester/23% spandex; cups: 58% polyurethane/42% recycled polyester
Top Rated
Icebreaker260 Tech Long-Sleeve Crewe Base Layer Top - Women's
$125.00 - $140.00
49 reviews with an average rating of 4.7 out of 5 stars
Underwear Weight:
Heavyweight
Size Type:
Regular, Plus
Top Rated
SmartwoolClassic All-Season Merino Quarter-Zip Base Layer Top - Men's
$105.00
11 reviews with an average rating of 4.7 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
prAnaSculpt Scoop Bra
$58.00
12 reviews with an average rating of 3.6 out of 5 stars
Bra Support:
Low Impact
Support Style:
Compression / Encapsulation
Fabric:
84% recycled polyester/16% elastane
StanceSolid Boxer Briefs - Men's
$16.73
Save 33%
compared to $25.00
Members use code OUT4JUL26 for $20 off $100+ at REI Outlet thru 7/6.
0 reviews
Size Type:
Regular
REI OUTLET
Terramar1.0 All-Season Lightweight Merino Wool T-Shirt - Women's
$34.73
Save 30%
compared to $50.00
Members use code OUT4JUL26 for $20 off $100+ at REI Outlet thru 7/6.
0 reviews
Underwear Weight:
Lightweight
Size Type:
Regular
REI OUTLET
REI Co-opActive Thong Underwear - Women's
$16.95
30 reviews with an average rating of 4.3 out of 5 stars
Size Type:
Regular, Plus
Top Rated
IcebreakerMerino 200 ZoneKnit Long-Sleeve Half-Zip Base Layer Top - Men's
$119.73
Save 25%
compared to $160.00
Members use code OUT4JUL26 for $20 off $100+ at REI Outlet thru 7/6.
8 reviews with an average rating of 4.5 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular
REI OUTLET
Top Rated
IcebreakerMerino 200 Oasis Thermal Base Layer Leggings - Women's
$78.73
Save 25%
compared to $105.00
Members use code OUT4JUL26 for $20 off $100+ at REI Outlet thru 7/6.
90 reviews with an average rating of 4.5 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Plus
REI OUTLET
Panache SportSculptresse Thrive Anywhere High-Impact Sports Bra
$98.00
0 reviews
Bra Support:
High Impact
Support Style:
Compression / Encapsulation
Fabric:
40% polyester/40% polyamide/10% LYCRA® Adaptiv elastane/4% elastane
Top Rated
Kari TraaEdith Half-Zip Base Layer Top - Women's
$81.73
Save 25%
compared to $110.00
Members use code OUT4JUL26 for $20 off $100+ at REI Outlet thru 7/6.
12 reviews with an average rating of 4.5 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular
REI OUTLET
CIRCLELevel Up Bra 2.0
$95.00
0 reviews
Bra Support:
High Impact
Support Style:
Compression / Encapsulation
Fabric:
65% recycled polyamide/35% elastane
Icebreaker125 ZoneKnit Crewe Base Layer Shirt - Men's
$84.73
Save 26%
compared to $115.00
Members use code OUT4JUL26 for $20 off $100+ at REI Outlet thru 7/6.
7 reviews with an average rating of 4.4 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular
REI OUTLET
prAnaHeavana Every Day Bra
$64.00
11 reviews with an average rating of 3.9 out of 5 stars
Bra Support:
Medium Impact
Support Style:
Encapsulation
Fabric:
87% recycled polyester/13% elastane
SmartwoolIntraknit Thermal Max Merino Quarter-Zip Base Layer Top - Women's
$115.73
Save 25%
compared to $155.00
Members use code OUT4JUL26 for $20 off $100+ at REI Outlet thru 7/6.
0 reviews
Underwear Weight:
Heavyweight
Size Type:
Regular
REI OUTLET
Top Rated
Icebreaker260 Tech Base Layer Leggings - Women's
$125.00
34 reviews with an average rating of 4.5 out of 5 stars
Underwear Weight:
Heavyweight
Size Type:
Regular, Plus