Base Layers and Underwear
page 3 of 4
↩ Overview & Top Picks
↩ Overview & Top Picks
Category
- Base Layer Tops (81)
- Base Layer Bottoms (31)
- Boxers, Briefs, Bikinis (20)
- Arm and Leg Sleeves (3)
![user rating: 4.5 of 5 user rating: 4.5 of 5](/images/stars/140x26/4.5.png)
Helly Hansen HH Lifa Merino 1/2 Zip
Top
$100
MSRP
![user rating: 4.5 of 5 user rating: 4.5 of 5](/images/stars/140x26/4.5.png)
Smartwool Midweight Funnel Zip
Top
$100
MSRP
![user rating: 5 of 5 user rating: 5 of 5](/images/stars/140x26/5.png)
Icebreaker Bodyfit 150 Long Sleeve Crewe
Top
![user rating: 5 of 5 user rating: 5 of 5](/images/stars/140x26/5.png)
Adidas Sport Performance Flex 360 Boxer Brief
Boxer/Brief/Bikini
![user rating: 5 of 5 user rating: 5 of 5](/images/stars/140x26/5.png)
Mountain Equipment Crux LS Crew
![user rating: 4.5 of 5 user rating: 4.5 of 5](/images/stars/140x26/4.5.png)
Smartwool Microweight Crew
Top
![user rating: 5 of 5 user rating: 5 of 5](/images/stars/140x26/5.png)
Woolx Everyday Long Sleeve Crew 230 Midweight
Top
$74
MSRP
![user rating: 5 of 5 user rating: 5 of 5](/images/stars/140x26/5.png)
Patagonia Capilene 4 Expedition Weight Zip-Neck
Top
![user rating: 5 of 5 user rating: 5 of 5](/images/stars/140x26/5.png)
Icebreaker Oasis Long Sleeve Crewe
Top
![user rating: 5 of 5 user rating: 5 of 5](/images/stars/140x26/5.png)
Icebreaker Everyday Long Sleeve Crewe
Top
![user rating: 5 of 5 user rating: 5 of 5](/images/stars/140x26/5.png)
Stoic Alpine Merino 150 Crew - Long-Sleeve
Top
![user rating: 5 of 5 user rating: 5 of 5](/images/stars/140x26/5.png)
U.S. Military Gen III, Level 2 ECWCS Top
Top
![user rating: 5 of 5 user rating: 5 of 5](/images/stars/140x26/5.png)
Mont Slinx LS Zip
Top
![user rating: 5 of 5 user rating: 5 of 5](/images/stars/140x26/5.png)
New Balance Performance Underwear 9 Inch Inseam Boxer Brief
Boxer/Brief/Bikini
![user rating: 5 of 5 user rating: 5 of 5](/images/stars/140x26/5.png)
Icebreaker 260 Midweight Tech Top
Top
$110
MSRP
![user rating: 4.5 of 5 user rating: 4.5 of 5](/images/stars/140x26/4.5.png)
The Elixir UV Arm Sleeves
Arm/Leg Sleeve
![user rating: 4 of 5 user rating: 4 of 5](/images/stars/140x26/4.png)
MyPakage Action Series Boxer Brief
Boxer/Brief/Bikini
$40
MSRP
![user rating: 4 of 5 user rating: 4 of 5](/images/stars/140x26/4.png)
Woolx X704
Top
$170
MSRP
![user rating: 4 of 5 user rating: 4 of 5](/images/stars/140x26/4.png)
Smartwool Merino Sport 150 Hidden Pocket Tech Tee
Short Sleeve Performance Top / Top
$65
MSRP
![user rating: 4 of 5 user rating: 4 of 5](/images/stars/140x26/4.png)
Ridge Merino Inversion Heavyweight Bottoms
Bottom
$80
MSRP
![user rating: 5 of 5 user rating: 5 of 5](/images/stars/140x26/5.png)
Marmot Lightweight Crew LS
Top
$45
MSRP
![user rating: 5 of 5 user rating: 5 of 5](/images/stars/140x26/5.png)
Polarmax Tech Silk Crew
Top
$30
MSRP
![user rating: 5 of 5 user rating: 5 of 5](/images/stars/140x26/5.png)
First Lite Chama Hoody
Top
![user rating: 5 of 5 user rating: 5 of 5](/images/stars/140x26/5.png)
Patagonia Merino 2 Lightweight Crew
Top
$70
MSRP
![user rating: 5 of 5 user rating: 5 of 5](/images/stars/140x26/5.png)
Bight Gear Solstice Graphene Hoody
Top
$69
MSRP
![user rating: 5 of 5 user rating: 5 of 5](/images/stars/140x26/5.png)
Marmot Midweight Bottom
Bottom
$50
MSRP
![user rating: 5 of 5 user rating: 5 of 5](/images/stars/140x26/5.png)
Smartwool Midweight Zip T
Top
$90
MSRP
![user rating: 4.5 of 5 user rating: 4.5 of 5](/images/stars/140x26/4.5.png)
Craft Active Extreme 2.0 CN LS Top
Top
![user rating: 5 of 5 user rating: 5 of 5](/images/stars/140x26/5.png)
Ibex Balance Briefs
Boxer/Brief/Bikini
$25
MSRP
![user rating: 5 of 5 user rating: 5 of 5](/images/stars/140x26/5.png)
Under Armour ColdGear Fitted Legging
Bottom
$50
MSRP
![user rating: 5 of 5 user rating: 5 of 5](/images/stars/140x26/5.png)
Mountain Hardwear Power Stretch Zip T
Top
$95
MSRP
![user rating: 5 of 5 user rating: 5 of 5](/images/stars/140x26/5.png)
Terramar TXO 3.0 Body-Sensors
![user rating: 4.5 of 5 user rating: 4.5 of 5](/images/stars/140x26/4.5.png)
Patagonia Merino 3 Midweight Crew
Top
$85
MSRP
![user rating: 5 of 5 user rating: 5 of 5](/images/stars/140x26/5.png)
Ibex Indie Zip T
Top
$95
MSRP
![user rating: 4.5 of 5 user rating: 4.5 of 5](/images/stars/140x26/4.5.png)
Eddie Bauer First Ascent Midweight Crewneck Baselayer
Top
$45
MSRP
![user rating: 5 of 5 user rating: 5 of 5](/images/stars/140x26/5.png)
Smartwool NTS Mid 250 Bottom
Bottom
![user rating: 5 of 5 user rating: 5 of 5](/images/stars/140x26/5.png)
Smartwool NTS Mid 250 Hoody
Top
![user rating: 5 of 5 user rating: 5 of 5](/images/stars/140x26/5.png)
Smartwool Midweight Turtleneck
Top
$85
MSRP
![user rating: 3 of 5 user rating: 3 of 5](/images/stars/140x26/3.png)
Icebreaker Oasis Crewe S/S
Top
![user rating: 4.5 of 5 user rating: 4.5 of 5](/images/stars/140x26/4.5.png)
Stoic Merino Bliss Shirt - Long-Sleeve
Top
$79
MSRP
![user rating: 4.5 of 5 user rating: 4.5 of 5](/images/stars/140x26/4.5.png)
Icebreaker 260 Midweight LS Crewe
Top
$100
MSRP
![user rating: 4 of 5 user rating: 4 of 5](/images/stars/140x26/4.png)
Patagonia Capilene 1 Silkweight Crew
Top
![user rating: 4 of 5 user rating: 4 of 5](/images/stars/140x26/4.png)
Houdini Desoli Zip
Top
![user rating: 4 of 5 user rating: 4 of 5](/images/stars/140x26/4.png)
Smartwool Midweight Bottom
Bottom
$80
MSRP
![user rating: 4 of 5 user rating: 4 of 5](/images/stars/140x26/4.png)
Under Armour Original Series 9-inch Boxerjock
Boxer/Brief/Bikini
![user rating: 4.5 of 5 user rating: 4.5 of 5](/images/stars/140x26/4.5.png)
ExOfficio Give-N-Go Sport Mesh Brief
Boxer/Brief/Bikini
$26
MSRP
![user rating: 4.5 of 5 user rating: 4.5 of 5](/images/stars/140x26/4.5.png)
Eddie Bauer First Ascent Midweight Baselayer Pants
Bottom
$45
MSRP
![user rating: 4 of 5 user rating: 4 of 5](/images/stars/140x26/4.png)
ExOfficio Give-N-Go Lacy Full Cut Brief
Boxer/Brief/Bikini
Other Types of Clothing and Accessories
Find more clothing and accessories reviewed in these related categories:
![](/images/gear/2014/jackethard-300x300.jpg)
Jackets
![](/images/gear/2014/vest-300x300.jpg)
Vests
![](/images/gear/2014/shirt-300x300.jpg)
Shirts
![](/images/gear/2014/jackethard-300x300.jpg)