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Underwear: Deals

(325 products)

Products (325)

Sort: Best Match

Top Rated
PatagoniaCapilene Midweight Crew Base Layer Top - Men's
$43.83 - $89.00
89 reviews with an average rating of 4.5 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
New arrival
SmartwoolMerino Boxer Briefs Boxed - Men's
$34.73
Save 27%
compared to $48.00
0 reviews
Size Type:
Regular, Big
REI OUTLET
ExOfficioGive-N-Go 2.0 Sport Mesh Thong Underwear - Women's
$16.73
Save 30%
compared to $24.00
136 reviews with an average rating of 3.9 out of 5 stars
Size Type:
Regular
REI OUTLET
Sale Ends Mar 23
Top Rated
REI Co-opMerino 185 Long-Sleeve Half-Zip Base Layer Top - Women's
$67.39
Save 25%
compared to $89.95
110 reviews with an average rating of 4.5 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular
REI Co-opActive Thong Underwear - Women's
$6.83 - $16.95
28 reviews with an average rating of 4.4 out of 5 stars
Size Type:
Regular, Plus
ExOfficioGNG 2.0 Bra
$19.73
Save 24%
compared to $26.00
534 reviews with an average rating of 3.9 out of 5 stars
Bra Support:
Low Impact
Support Style:
Encapsulation
Fabric:
89% nylon/11% elastane jersey
REI OUTLET
Top Rated
IcebreakerMerino 200 Oasis Long-Sleeve Crewe Thermal Top - Men's
$51.83 - $120.00
223 reviews with an average rating of 4.7 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
Top Rated
SmartwoolClassic All-Season Merino Long-Sleeve Base Layer Top - Men's
$66.93 - $100.00
101 reviews with an average rating of 4.6 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular, Big
New arrival
Kari TraaLinnea Sports Top - Women's
$29.73
Save 33%
compared to $45.00
0 reviews
Bra Support:
Low Impact
Support Style:
Compression
Fabric:
Main: 80% recycled polyester/20% elastane; 2nd: 78% recycled polyamide/22% elastane; 3rd: 92% polyester/8% elastane
REI OUTLET
tasc PerformanceElevation Merino T-Shirt - Women's
$54.73
Save 30%
compared to $79.00
93 reviews with an average rating of 4.3 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular, Plus
REI OUTLET
Icebreaker260 Tech High-Rise Base Layer Leggings - Women's
$61.83 - $125.00
23 reviews with an average rating of 4.5 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular
Top Rated
PatagoniaCapilene Midweight Crew Base Layer Top - Women's
$49.83 - $89.00
51 reviews with an average rating of 4.6 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Plus
SmartwoolClassic All-Season Merino T-Shirt - Women's
$59.93 - $95.00
98 reviews with an average rating of 4.2 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular, Plus
PatagoniaCapilene Midweight Base Layer Bottoms - Women's
$61.93 - $89.00
28 reviews with an average rating of 4.2 out of 5 stars
Size Type:
Regular, Plus
REI Co-opHeavyweight Merino Base Layer Half-Zip Top - Men's
$72.93 - $104.95
27 reviews with an average rating of 4.2 out of 5 stars
Underwear Weight:
Heavyweight
Size Type:
Regular, Big, Tall
Top Rated
ExOfficioGive-N-Go 2.0 Boxer Briefs - Men's
$22.73
Save 24%
compared to $30.00
3000 reviews with an average rating of 4.5 out of 5 stars
Size Type:
Regular
REI OUTLET
REI Co-opActive Pursuits Crop Tank Top - Women's
$21.83 - $44.95
12 reviews with an average rating of 3.9 out of 5 stars
Bra Support:
Low Impact
Support Style:
Compression
Fabric:
86% recycled polyester/14% spandex (bluesign approved)
REI Co-opMerino 185 Long-Sleeve Base Layer Top - Women's Plus Sizes
$49.93
Save 37%
compared to $79.95
29 reviews with an average rating of 4.4 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Plus
New arrival
Royal RobbinsReadyDry Boxers - Men's
$19.73
Save 29%
compared to $28.00
0 reviews
Size Type:
Regular, Big
REI OUTLET
PatagoniaMaipo Mid-Impact Bra
$44.93 - $69.00
0 reviews
Bra Support:
Medium Impact
Support Style:
Compression
Fabric:
6.3 oz. 81% NetPlus postconsumer recycled nylon/19% spandex knit with miDori bioSoft and HeiQ Mint
Top Rated
ExOfficio9" GNG Sport 2.0 Boxer Briefs - Men's
$24.73
Save 27%
compared to $34.00
536 reviews with an average rating of 4.7 out of 5 stars
Size Type:
Regular
REI OUTLET
tasc PerformanceElevation Merino Base Layer Bottoms - Women's
$54.73
Save 30%
compared to $79.00
66 reviews with an average rating of 4.1 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular, Plus
REI OUTLET
Top Rated
SaxxQuest Boxer Briefs - Men's
$24.73
Save 27%
compared to $34.00
7 reviews with an average rating of 4.6 out of 5 stars
Size Type:
Regular
REI OUTLET
tasc PerformanceElevation Merino T-Shirt - Men's
$34.73 - $54.73
Save 30% - 56%
compared to $79.00
52 reviews with an average rating of 4.4 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Big, Regular
REI OUTLET
prAnaTornado Bra
$44.73
Save 30%
compared to $64.00
0 reviews
Bra Support:
Low Impact
Support Style:
Compression / Encapsulation
Fabric:
90% organic cotton/10% elastane
REI OUTLET
PatagoniaMaipo Low-Impact Bra
$40.93 - $65.00
8 reviews with an average rating of 3.8 out of 5 stars
Bra Support:
Low Impact
Support Style:
Compression
Fabric:
81% NetPlus postconsumer recycled nylon/19% spandex knit with miDori bioSoft
Top Rated
ExOfficioGive-N-Go 2.0 Thong Underwear - Women's
$12.73
Save 29%
compared to $18.00
64 reviews with an average rating of 4.7 out of 5 stars
Size Type:
Regular
REI OUTLET
prAnaHeavana Racerback Bralette
$46.73
Save 28%
compared to $65.00
0 reviews
Bra Support:
Medium Impact
Support Style:
Compression / Encapsulation
Fabric:
87% recycled polyester/13% elastane
REI OUTLET
StanceCompression Nylon Boxer Briefs - Men's
$26.73
Save 31%
compared to $39.00
1 reviews with an average rating of 5.0 out of 5 stars
Size Type:
Regular
REI OUTLET
Kari TraaEmbla Wool Long-Sleeve Base Layer Top - Women's
$44.83 - $90.00
0 reviews
Underwear Weight:
Ultralightweight
Size Type:
Regular