REI Base Layers and Underwear

Categories

Tops
Bottoms
One-Piece Base Layers
Boxers, Briefs, Bikinis

Genders

Men's
Women's
Kids'
Boys'
Girls'

Price

less than $25
$25 - $49.99
$50 and above

Sort by: name | rating | price | availability | recently reviewed

REI Midweight Space Dye Tights
REI Midweight Space Dye Tights Base Layer Bottom
$47
REI Lightweight Polartec Power Dry MTS Long-Sleeve Crew
REI Lightweight Polartec Power Dry MTS Long-Sleeve Crew Base Layer Top
$17
REI Lightweight MTS Polartec Power Dry Bottoms
REI Lightweight MTS Polartec Power Dry Bottoms Base Layer Bottom
$35
REI Silk Camisole
REI Silk Camisole Base Layer Top
$35
REI Seamless Long-Sleeve T-Shirt
REI Seamless Long-Sleeve T-Shirt Base Layer Top
$60
REI Midweight Polartec Power Dry Crew
REI Midweight Polartec Power Dry Crew Base Layer Top
$18
REI Lightweight MTS Polartec Power Dry Zip-T
REI Lightweight MTS Polartec Power Dry Zip-T Base Layer Top
$40
REI Midweight Space Dye Zip-T Shirt
REI Midweight Space Dye Zip-T Shirt Base Layer Top
$57
REI Mesh MTS Briefs
REI Mesh MTS Briefs Base Layer Bottom
$19
REI Midweight Long Underwear Bottoms
REI Midweight Long Underwear Bottoms Base Layer Bottom
$23 - $39
 
REI Heavyweight Long Underwear Bottoms Base Layer Bottom
$50
REI Heavyweight Tights
REI Heavyweight Tights Base Layer Bottom
$50
REI Heavyweight Crew Shirt
REI Heavyweight Crew Shirt Base Layer Top
$50
REI Silk V-Neck
REI Silk V-Neck Base Layer Top
$45
REI Seamless Tights
REI Seamless Tights Base Layer Bottom
$50
REI Midweight Space Dye Crew Shirt
REI Midweight Space Dye Crew Shirt Base Layer Top
$47
REI Lightweight Quarter-Zip Shirt
REI Lightweight Quarter-Zip Shirt Base Layer Top
$47
REI Boxer Jack Underwear
REI Boxer Jack Underwear Boxers, Briefs, Bikini
$23
REI Silk Bottoms
REI Silk Bottoms Base Layer Bottom
$45
REI Silk Long Underwear Bottom
REI Silk Long Underwear Bottom Base Layer Bottom
$45
REI Lightweight Crew Shirt
REI Lightweight Crew Shirt Base Layer Top
$37
REI Lightweight Long Underwear Bottoms
REI Lightweight Long Underwear Bottoms Base Layer Bottom
$37
REI Midweight Long Underwear Crewneck
REI Midweight Long Underwear Crewneck Base Layer Top
$40
REI Midweight Polartec Power Dry Bottom
REI Midweight Polartec Power Dry Bottom Base Layer Bottom
$40
REI Mesh MTS Boxer Briefs
REI Mesh MTS Boxer Briefs Base Layer Bottom
$23
REI Lightweight Polartec Power Dry Crew
REI Lightweight Polartec Power Dry Crew Base Layer Top
$20
REI Silk Long-Sleeve Crew
REI Silk Long-Sleeve Crew Base Layer Top
$45
REI Mesh MTS Boxers
REI Mesh MTS Boxers Base Layer Bottom
$23
REI Midweight Long Underwear Half-Zip
REI Midweight Long Underwear Half-Zip Base Layer Top
$50
REI Seamless Tank Top
REI Seamless Tank Top Base Layer Top
$40
REI Heavyweight Quarter-Zip Top
REI Heavyweight Quarter-Zip Top Base Layer Top
$60
REI Midweight Polartec Power Dry Long Underwear Half-Zip Top
REI Midweight Polartec Power Dry Long Underwear Half-Zip Top Base Layer Top
$36 - $49
REI Heavyweight Half-Zip Shirt
REI Heavyweight Half-Zip Shirt Base Layer Top
$60
REI Midweight Crew Heather Top
REI Midweight Crew Heather Top Base Layer Top
$20
REI Expedition-Weight Crew Top
REI Expedition-Weight Crew Top Base Layer Top
$30
REI Airflyte Top
REI Airflyte Top
$20 - $29
REI Expedition-Weight Long Underwear Bottoms
REI Expedition-Weight Long Underwear Bottoms Base Layer Bottom
$25 - $29
REI Expedition-Weight Quarter-Zip Top
REI Expedition-Weight Quarter-Zip Top Base Layer Top
$30 - $34
REI Midweight Heather Long Underwear Bottoms
REI Midweight Heather Long Underwear Bottoms Base Layer Bottom
$20
REI Midweight Print Union Suit
REI Midweight Print Union Suit One-Piece Base Layer
$25
REI Midweight Crew Print Top
REI Midweight Crew Print Top Base Layer Top
$23
REI Midweight Quarter-Zip Top
REI Midweight Quarter-Zip Top Base Layer Top
$25
REI Midweight Polartec Power Dry Zip-T
user rating: 5 of 5 (1)
REI Midweight Polartec Power Dry Zip-T Base Layer Top
$37 MSRP
REI Heavyweight MTS Bottoms
user rating: 4 of 5 (1)
REI Heavyweight MTS Bottoms Base Layer Bottom
$35 MSRP
 
REI Micro Fleece Long Underwear Bottoms Base Layer Bottom
REI Heavyweight Polartec Power Dry Bottoms
REI Heavyweight Polartec Power Dry Bottoms Base Layer Bottom
$45 MSRP
REI Heavyweight Polartec Power Dry Crew
REI Heavyweight Polartec Power Dry Crew Base Layer Top
$45 MSRP
REI Lightweight MTS Polartec Power Dry Crew
REI Lightweight MTS Polartec Power Dry Crew Base Layer Top
$25 MSRP
REI Midweight Polartec Power Dry Allstar Suit
REI Midweight Polartec Power Dry Allstar Suit One-Piece Base Layer
REI Bikini Briefs
REI Bikini Briefs Boxers, Briefs, Bikini
$15 MSRP
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