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
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
$17 - $26
Stoic Merino 200 Boxer Brief
user rating: 5 of 5 (1)
Stoic Merino 200 Boxer Brief reviewed Apr 24, 2014
$45
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 Midweight Crew
user rating: 5 of 5 (1)
SmartWool Midweight Crew reviewed Jan 22, 2014
$40 - $95
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
$42 - $80
Icebreaker Oasis Long Sleeve Crewe
user rating: 5 of 5 (1)
Icebreaker Oasis Long Sleeve Crewe reviewed Oct 19, 2013
$49 - $109
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
SmartWool Midweight Zip T
user rating: 5 of 5 (2)
SmartWool Midweight Zip T reviewed Oct 1, 2013
$45 - $105
SmartWool Midweight Bottom
user rating: 4 of 5 (2)
SmartWool Midweight Bottom reviewed Sep 23, 2013
$41 - $95
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
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
Terramar Thermolator II Pant
user rating: 4 of 5 (1)
Terramar Thermolator II Pant reviewed Feb 6, 2013
$18
Terramar SmartSilk Tights
user rating: 4 of 5 (2)
Terramar SmartSilk Tights reviewed Mar 7, 2013
$45
 
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 260 Midweight LS Crewe
user rating: 4.5 of 5 (4)
Icebreaker 260 Midweight LS Crewe reviewed Aug 8, 2013
$69
Icebreaker Anatomica Brief
user rating: 4.5 of 5 (1)
Icebreaker Anatomica Brief reviewed Jan 20, 2013
$30
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
$32
Patagonia Capilene 4 Expedition Weight Zip-Neck
user rating: 5 of 5 (2)
Patagonia Capilene 4 Expedition Weight Zip-Neck reviewed Dec 29, 2012
$50 - $99
 
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
$34 - $45
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
$110 MSRP
Terramar Thermawool Merino Crew Top
user rating: 4 of 5 (1)
Terramar Thermawool Merino Crew Top reviewed Jul 16, 2012
$42
Patagonia R1 Pants
user rating: 5 of 5 (2)
Patagonia R1 Pants reviewed Feb 29, 2012
$99
Patagonia Merino 3 Midweight Crew
user rating: 4.5 of 5 (1)
Patagonia Merino 3 Midweight Crew reviewed Feb 28, 2012
$58 - $115
SmartWool Midweight Funnel Zip
user rating: 4.5 of 5 (1)
SmartWool Midweight Funnel Zip reviewed Feb 23, 2012
$75 - $114
 
user rating: 4 of 5 (1)
Wickers Visco-Wool Boxer reviewed Sep 3, 2011
Stoic Merino Bliss Shirt - Long-Sleeve
user rating: 4.5 of 5 (2)
Stoic Merino Bliss Shirt - Long-Sleeve reviewed Apr 24, 2011
$79 MSRP
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
 
user rating: 4.5 of 5 (1)
Minus33 100% Wool Mid Weight Turtleneck reviewed Feb 21, 2011
Eddie Bauer First Ascent Midweight Baselayer Pants
user rating: 4.5 of 5 (1)
Eddie Bauer First Ascent Midweight Baselayer Pants reviewed Jan 28, 2011
$45 MSRP
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