Base Layers and Underwear

Categories

Tops
Bottoms
One-Piece Base Layers
Boxers, Briefs, Bikinis
Sports Bras
Arm and Leg Sleeves

Brands

SmartWool
other
Avalanche Wear
ExOfficio
Stoic
Adidas
Under Armour
Wild Country
Icebreaker
Patagonia

Genders

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

Price

less than $25
$25 - $49.99
$50 - $99.99
$100 - $199.99
$200 - $299.99
$300 and above

Recent Base Layer Reviews

SmartWool Midweight Turtleneck

rated 5 of 5 stars Luxurious warmth!!!! WOW! I could just leave it at that but I will elaborate. I first bought the SmartWool NTS 250 bottoms, which I love, so when I saw this shirt on sale I couldn't resist. Although both the top and bottoms are NTS 250 the top is much thicker and sooooo soft. I like staying warm outdoors and this shirt has kept me just that! I wear it all winter and bring it along for all my hiking and camping endeavours in the summer as well. I usually sleep in it when I'm at higher elevations… Full review

SmartWool Women's NTS Mid 250 Bottom

rated 5 of 5 stars These are without a doubt the best long johns I have ever owned! I am 5'7", 125lbs and I bought the mediums. They fit like a glove (well literally as they are next to skin). So comfy and non restricting, you barely notice you have them on. I did a lot of research in my quest for super warm long johns and came to the conclusion that wool was going to be the warmest. I am not disappointed. The waistband is wider so they don't roll down as some other brands do. I love being outdoors but don't like… Full review

First Lite Chama Hoody

rated 5 of 5 stars My First Lite merino clothing keeps me comfortable in the cold mountain mornings and when I am hiking during the warmer parts of the day. Great for layering or for sleeping in on those cold nights. Pull the hood up, cinch it down for added warmth. The Chama Hoody is a versatile top. It can be used as a base layer on those cold hikes through the woods, or as a stand-alone sweater on those days where a jacket is too much. The hood, with its cinch string, is useful in a cool environment, but you will… Full review

Avalanche Wear Mogul Pant

rated 5 of 5 stars These pants are incredible. I've worn and washed them 100 times and they still look and feel new. These pants are INCREDIBLE. I have washed and worn them 100 times. Not only have I been wearing them as a base layer under my ski pants but I wear their legging style all winter. Since I live in leggings all year these are perfect for winter because they have a fleece lining and I swear they are wind block (even though I don't think they are). Anyway, I have been reading about other people's pants pilling,… Full review

ExOfficio Give-N-Go Boxer Brief

rated 4.5 of 5 stars These might replace every pair of underwear you own. Okay, maybe not at $25 a pair, but they are comfortable, lightweight, incredibly fast at wicking away moisture and quick drying. Yep, they are that good. When I purchased my first pair of these in 2009, I would have said $25 is rather expensive for a pair of underwear and would have listed that as a con. Today, as I see other performance underwear being sold for $30-$50, I realize that $25 is reasonable and well worth the investment. If you're… Full review

Stoic Merino 200 Boxer Brief

rated 5 of 5 stars Superb. I wouldn't wear anything other than merino underwear for outdoor use year round and these are the best I've bought. I've tried Icebreaker (legs too short and fabric rides up) and SmartWool (not bad).  Good midweight fabric here and grips the legs well, but not constrictive in the groin. Full review

Adidas Sport Performance Flex 360 Boxer Brief

rated 5 of 5 stars Let's talk about my underwear. Awkward, right? OK, let's talk about chaffing. Yea, not any better is it? On the other hand, there really isn't a lot of information available on this touchy and very important subject. So guys, here's my effort to weigh in on the subject with an outstanding option to help solve the issue. Summary:  The Adidas flex360 Sport Performance Boxer Brief is comfortable and highly functional as it flexes to your body shape while (1) providing proper male athletic support,… Full review

ExOfficio Give-N-Go Boxer Brief

rated 5 of 5 stars Only boxer briefs to wear while being active. Best underwear for the outdoors! I wear them hiking, camping, and under my board shorts. They dry fast and even after a few days in Yosemite they kept their shape and didn't stink. Full review

Under Armour Original Series 9-inch Boxerjock

rated 4 of 5 stars Comfortable, functional, and durable underwear for most sport activities. Light breathable fabric wicks moisture and dries well. Extended leg provides extended friction protection. The Under Armour Boxerjock came highly recommended for backpacking from several sources. I was a bit taken aback when I first saw the price. The idea of $20 underwear seemed a bit absurd to me and I made more than a few jokes. Still, as a cyclist I was well aware of the value in wearing the right gear to protect sensitive… Full review

Top-Rated Base Layers and Underwear

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

SmartWool Midweight Turtleneck
user rating: 5 of 5 (1)
SmartWool
Midweight Turtleneck
reviewed Sep 29, 2014
$84
SmartWool NTS Mid 250 Bottom
user rating: 5 of 5 (1)
SmartWool
NTS Mid 250 Bottom
reviewed Sep 29, 2014
$95 - $100
First Lite Chama Hoody
user rating: 5 of 5 (1)

First Lite Chama Hoody
reviewed Jun 5, 2014
Avalanche Wear Mogul Pant
user rating: 3 of 5 (2)
Avalanche Wear
Mogul Pant
reviewed May 28, 2014
$30
ExOfficio Give-N-Go Boxer Brief
user rating: 5 of 5 (5)
ExOfficio
Give-N-Go Boxer Brief
reviewed May 9, 2014
$18 - $26
Stoic Merino 200 Boxer Brief
user rating: 5 of 5 (1)
Stoic
Merino 200 Boxer Brief
reviewed Apr 24, 2014
$36
Adidas Sport Performance Flex 360 Boxer Brief
user rating: 5 of 5 (1)
Adidas
Sport Performance Flex 360 Boxer Brief
reviewed Apr 22, 2014
Under Armour Original Series 9-inch Boxerjock
user rating: 4 of 5 (1)
Under Armour
Original Series 9-inch Boxerjock
reviewed Mar 11, 2014
$20
SmartWool Microweight Crew
user rating: 4.5 of 5 (3)
SmartWool
Microweight Crew
reviewed Feb 2, 2014
$45 - $80
Wild Country Lightweight Base Layer Top
user rating: 2.5 of 5 (1)
Wild Country
Lightweight Base Layer Top
reviewed Jan 1, 2014
Icebreaker Bodyfit 150 Long Sleeve Crewe
user rating: 5 of 5 (3)
Icebreaker
Bodyfit 150 Long Sleeve Crewe
reviewed Dec 21, 2013
Patagonia Merino 2 Lightweight T-Shirt
user rating: 4 of 5 (1)
Patagonia
Merino 2 Lightweight T-Shirt
reviewed Oct 28, 2013
$40 - $80
Icebreaker Oasis Long Sleeve Crewe
user rating: 5 of 5 (1)
Icebreaker
Oasis Long Sleeve Crewe
reviewed Oct 19, 2013
$54 - $140
Verve Cassandra Bra
user rating: 4.5 of 5 (1)
Verve
Cassandra Bra
reviewed Oct 9, 2013
$38 MSRP
RedRam Merino Legging
user rating: 4 of 5 (1)
RedRam
Merino Legging
reviewed Oct 5, 2013
Ibex Swerve Long Sleeve Top
user rating: 5 of 5 (1)
Ibex
Swerve Long Sleeve Top
reviewed Oct 2, 2013
discontinued
Champion C9 Premium Boxer Briefs
user rating: 5 of 5 (1)

Champion C9 Premium Boxer Briefs
reviewed May 16, 2013
Terramar SmartSilk Crew
user rating: 3 of 5 (1)
Terramar
SmartSilk Crew
reviewed Mar 7, 2013
$60 MSRP
Terramar SmartSilk Tights
user rating: 4 of 5 (2)
Terramar
SmartSilk Tights
reviewed Mar 7, 2013
$45
Icebreaker GT 200 L/S Chase Zip
user rating: 4.5 of 5 (1)
Icebreaker
GT 200 L/S Chase Zip
reviewed Feb 13, 2013
$77
Terramar Hot Totties Fleece Heavy Footy Performance Leggings
user rating: 2.5 of 5 (1)
Terramar
Hot Totties Fleece Heavy Footy Performance Leggings
reviewed Feb 9, 2013
$10
Terramar Hot Totties Grid Fleece Tights
user rating: 5 of 5 (1)
Terramar
Hot Totties Grid Fleece Tights
reviewed Feb 9, 2013
$27 - $28
Icebreaker 200 Lightweight Legging
user rating: 4 of 5 (1)
Icebreaker
200 Lightweight Legging
reviewed Feb 7, 2013
$58 - $72
Under Armour ColdGear Fitted Legging
user rating: 5 of 5 (2)
Under Armour
ColdGear Fitted Legging
reviewed Feb 6, 2013
$50 MSRP
 
user rating: 5 of 5 (1)
Terramar
EC2 Transport
reviewed Jan 31, 2013
 
user rating: 5 of 5 (1)
Terramar
TXO 3.0 Body-Sensors
reviewed Jan 31, 2013
Icebreaker Anatomica Brief
user rating: 4.5 of 5 (1)
Icebreaker
Anatomica Brief
reviewed Jan 20, 2013
$22 - $29
Stoic Merino 200 1-Z Suit
user rating: 5 of 5 (1)
Stoic
Merino 200 1-Z Suit
reviewed Jan 20, 2013
Patagonia Capilene 3 Midweight Bottoms
user rating: 5 of 5 (1)
Patagonia
Capilene 3 Midweight Bottoms
reviewed Jan 19, 2013
$15 - $55
Gordini Silkweight Briefs
user rating: 3 of 5 (1)
Gordini
Silkweight Briefs
reviewed Jan 18, 2013
discontinued
Gordini Lavawool Midweight 1/4 Zip
user rating: 4 of 5 (2)
Gordini
Lavawool Midweight 1/4 Zip
reviewed Jan 18, 2013
discontinued
Icebreaker Bodyfit 200 Oasis Crewe Scroll
user rating: 3.5 of 5 (1)
Icebreaker
Bodyfit 200 Oasis Crewe Scroll
reviewed Jan 16, 2013
Stoic Alpine Merino 150 Crew - Long-Sleeve
user rating: 5 of 5 (2)
Stoic
Alpine Merino 150 Crew - Long-Sleeve
reviewed Dec 29, 2013
$47
 
user rating: 5 of 5 (1)
RedRam
Merino Boxer Briefs
reviewed Dec 13, 2012
Isis Henna Day
user rating: 4 of 5 (1)
Isis
Henna Day
reviewed Nov 15, 2012
$34 MSRP
Patagonia Capilene 1 Silkweight Scoop
user rating: 5 of 5 (1)
Patagonia
Capilene 1 Silkweight Scoop
reviewed Nov 1, 2012
$19 - $33
Stoic Breathe Composite Bottom
user rating: 4 of 5 (1)
Stoic
Breathe Composite Bottom
reviewed Nov 1, 2012
$49
ExOfficio Give-N-Go Lacy Full Cut Brief
user rating: 4 of 5 (1)
ExOfficio
Give-N-Go Lacy Full Cut Brief
reviewed Oct 10, 2012
$12 - $21
Isis Active Bra
user rating: 3 of 5 (1)
Isis
Active Bra
reviewed Oct 7, 2012
Icebreaker Siren Bra
user rating: 5 of 5 (1)
Icebreaker
Siren Bra
reviewed Jul 29, 2012
$45 MSRP
SmartWool Midweight Hoody
user rating: 5 of 5 (1)
SmartWool
Midweight Hoody
reviewed Jul 29, 2012
$75
Patagonia Merino 3 Midweight Crew
user rating: 4.5 of 5 (1)
Patagonia
Merino 3 Midweight Crew
reviewed Feb 28, 2012
$51 - $115
SmartWool Microweight Bottom
user rating: 4.5 of 5 (1)
SmartWool
Microweight Bottom
reviewed Feb 23, 2012
$55 - $75
 
user rating: 4 of 5 (1)
Wickers
Visco-Wool Boxer
reviewed Sep 3, 2011
REI Midweight Polartec Power Dry Zip-T
user rating: 5 of 5 (1)
REI
Midweight Polartec Power Dry Zip-T
reviewed Mar 17, 2011
$37 MSRP
Marmot Lightweight Bottom
user rating: 5 of 5 (1)
Marmot
Lightweight Bottom
reviewed Feb 26, 2011
$28 - $84
 
user rating: 4.5 of 5 (1)
Minus33
100% Wool Mid Weight Turtleneck
reviewed Feb 21, 2011
Patagonia Wool 2 Crew
user rating: 5 of 5 (1)
Patagonia
Wool 2 Crew
reviewed Nov 30, 2010
discontinued
Kenyon Power Stretch Baselayer Bottoms
user rating: 4.5 of 5 (1)
Kenyon
Power Stretch Baselayer Bottoms
reviewed Nov 4, 2010
$35 - $44
Under Armour Catalyst Longsleeve T
user rating: 5 of 5 (1)
Under Armour
Catalyst Longsleeve T
reviewed Oct 25, 2010
$35 MSRP
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