Base Layers and Underwear

Categories

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

Brands

other
2XU
66°North
686
Adidas
Airblaster
Alo
Arc'teryx
Avalanche Wear
Backcountry.com

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

Champion C9 Premium Boxer Briefs
user rating: 5 of 5 (1)

Champion C9 Premium Boxer Briefs
Boxers, Briefs, Bikini
First Lite Chama Hoody
user rating: 5 of 5 (1)

First Lite Chama Hoody
Base Layer Top
2XU Compression Arm Warmers
2XU
Compression Arm Warmers
Arm or Leg Sleeves
2XU Compression Calf Guards
2XU
Compression Calf Guards
Arm or Leg Sleeves
$45 MSRP
2XU Compression Calf Sleeves
2XU
Compression Calf Sleeves
Arm or Leg Sleeves
2XU Engineered Knit L/S
2XU
Engineered Knit L/S
Base Layer Top
2XU Engineered Knit S/S
2XU
Engineered Knit S/S
Base Layer Top
2XU Thermal Compression Arm Warmers
2XU
Thermal Compression Arm Warmers
Arm or Leg Sleeves
66°North Vik Tights
66°North
Vik Tights
Base Layer Bottom
$65 - $119
686 Airhole Thermal Airtube Top
686
Airhole Thermal Airtube Top
$60
686 Airhole Thermal Bala Top
686
Airhole Thermal Bala Top
Base Layer Top
$60
686 Airhole Thermal One Piece
686
Airhole Thermal One Piece
One-Piece Base Layer
$100
Adidas Sport Performance Flex 360 Boxer Brief
user rating: 5 of 5 (1)
Adidas
Sport Performance Flex 360 Boxer Brief
Boxers, Briefs, Bikini
Airblaster Expedition Weight Ninja Suit
Airblaster
Expedition Weight Ninja Suit
One-Piece Base Layer
Airblaster Hoodless Ninja Suit
Airblaster
Hoodless Ninja Suit
One-Piece Base Layer
Airblaster Merino Ninja Suit
Airblaster
Merino Ninja Suit
One-Piece Base Layer
$113
Airblaster Merino Wool Ninja Suit
Airblaster
Merino Wool Ninja Suit
One-Piece Base Layer
Airblaster Ninja Suit
Airblaster
Ninja Suit
One-Piece Base Layer
Airblaster Sumo Suit
Airblaster
Sumo Suit
One-Piece Base Layer
Alo Mesh Back Bra
Alo
Mesh Back Bra
Sports Bra
$25 MSRP
Arc'teryx Eon SLW Bottom
Arc'teryx
Eon SLW Bottom
Base Layer Bottom
$89 MSRP
Arc'teryx EON SLW Boxer
Arc'teryx
EON SLW Boxer
Boxers, Briefs, Bikini
$55 MSRP
Arc'teryx Eon SLW Crew LS
Arc'teryx
Eon SLW Crew LS
Base Layer Top
$99 MSRP
Arc'teryx Eon SLW Hoody
Arc'teryx
Eon SLW Hoody
Base Layer Top
$120 MSRP
Arc'teryx Eon SLW T-Shirt
Arc'teryx
Eon SLW T-Shirt
Base Layer Top
$89 MSRP
Arc'teryx Phase AR Bottom
Arc'teryx
Phase AR Bottom
Base Layer Bottom
$75
Arc'teryx Phase AR Crew LS
Arc'teryx
Phase AR Crew LS
Base Layer Top
$24 - $75
Arc'teryx Phase AR Zip-Neck LS
Arc'teryx
Phase AR Zip-Neck LS
Base Layer Top
$79
Arc'teryx Phase SL Bottom
Arc'teryx
Phase SL Bottom
Base Layer Bottom
$37 - $68
Arc'teryx Phase SL Boxer
Arc'teryx
Phase SL Boxer
Boxers, Briefs, Bikini
$45
Arc'teryx Phase SL Bra
Arc'teryx
Phase SL Bra
Sports Bra
$35
Arc'teryx Phase SL Brief
Arc'teryx
Phase SL Brief
Boxers, Briefs, Bikini
$35
Arc'teryx Phase SL Camisole
Arc'teryx
Phase SL Camisole
Base Layer Top
$29 - $48
Arc'teryx Phase SL Crew LS
Arc'teryx
Phase SL Crew LS
Base Layer Top
$69
Arc'teryx Phase SL Crew SS
Arc'teryx
Phase SL Crew SS
Base Layer Top
$35 - $64
Arc'teryx Phase SL Zip Neck
Arc'teryx
Phase SL Zip Neck
Base Layer Top
$79
Arc'teryx Phase SV Boot Cut
Arc'teryx
Phase SV Boot Cut
Base Layer Bottom
$79
Arc'teryx Phase SV Bottom
Arc'teryx
Phase SV Bottom
Base Layer Bottom
$79
Arc'teryx Phase SV Crew LS
Arc'teryx
Phase SV Crew LS
Base Layer Top
$79
Arc'teryx Phase SV CZ Bottom
Arc'teryx
Phase SV CZ Bottom
Base Layer Bottom
$89
Arc'teryx Rho AR Bottom
Arc'teryx
Rho AR Bottom
Base Layer Bottom
$88 - $119
Arc'teryx Rho AR Top
Arc'teryx
Rho AR Top
Base Layer Top
$125 MSRP
Arc'teryx Rho LT Bottom
Arc'teryx
Rho LT Bottom
Base Layer Bottom
$129 MSRP
Arc'teryx Rho LT Zip
user rating: 5 of 5 (2)
Arc'teryx
Rho LT Zip
Base Layer Top
$53 - $119
Arc'teryx Rho LTW Bottom
Arc'teryx
Rho LTW Bottom
Base Layer Bottom
$129 MSRP
Arc'teryx Rho LTW Zip
Arc'teryx
Rho LTW Zip
Base Layer Top
$77 - $128
Arc'teryx Stryka Hoodie
Arc'teryx
Stryka Hoodie
Base Layer Bottom
$125
Avalanche Wear Mogul Pant
user rating: 3 of 5 (2)
Avalanche Wear
Mogul Pant
Base Layer Bottom
$30
Backcountry.com Merino 150 Base Layer Long Sleeve
Backcountry.com
Merino 150 Base Layer Long Sleeve
$79
Backcountry.com Merino 150 Base Shirt Long Sleeve
Backcountry.com
Merino 150 Base Shirt Long Sleeve
Base Layer Top
$69
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