Base Layers and Underwear

Category

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

Brand

Avalanche Wear
Coldpruf
ExOfficio
Icebreaker
Minus33
Beyond Clothing
Airblaster
Outdoor Research
Ridge Merino
U.S. Military

User

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 - $399.99
$400 - $499.99
$500 and above

Recent Base Layer Reviews

Avalanche Wear Mogul Pant

rated 1 of 5 stars These used to be my go-to pants. They were fantastic until they changed the fabric years ago and made them in China. I just bought these pants after years of refusing to buy them for years because of the terrible pilling and their latest product is worse than ever. They pilled immediately. I bought Athletica Polartec at the same time and there is no pilling. I am so disappointed because 15 years ago when they were made in Canada they were fantastic. Why don't companies listen to their consumer reviews? Full review

Coldpruf Platinum II Pant

rated 5 of 5 stars ColdPruf has better quality materials (not cotton) than the old stuff I have, and the fit is much better. There are excellent sizing charts and sizes for tall people, like myself. The fit is great. I could comfortably play sports or other activities in the Platinum II without any range of motion restrictions. It is tight enough fitting for a base layer (the modern name for long underwear), but not too tight. Recommend for active people in cold weather. As a member of another website, I get products… Full review

Coldpruf Platinum II Crew

rated 5 of 5 stars ColdPruf has better quality materials (not cotton) than the old stuff I have, and the fit is much better. There are excellent sizing charts and sizes for tall people, like myself. The fit is great. I could comfortably play sports or other activities in the Platinum II without any range of motion restrictions. It is tight enough fitting for a base layer (the modern name for long underwear), but not too tight. Recommended for active people in cold climates. As a member of another website, I get products… Full review

ExOfficio Give-N-Go Boxer Brief

rated 1 of 5 stars The fabric makes the genitals sweat and smell. The fabric seems okay, but the genitals sweat and now smell.  Full review

Icebreaker Oasis Crewe S/S

rated 0.5 of 5 stars Very expensive crap. I am in New Zealand where Icebreaker comes from and this brand has gone downhill in the last year or so. The quality is not what it used to be and is mostly no longer 100% pure Merino wool as their general advertising would have us believe, instead having other artificial fiber incorporated into the yarn I am informed. At the beginning of winter I bought three Icebreaker items. A scarf, a sweater, and a base layer. The first two were returned to the retailer as they were not… Full review

Icebreaker Oasis Crewe S/S

rated 5 of 5 stars This 100% merino wool t shirt is great for most outdoor pursuits and workouts. 200 weight merino is a bit heavier weight than the "ultralight" wool t's and has benefits, namely more warmth and durability. The ability to wear while damp, wick moisture, and stay warm is wonderful. Smooth finish is not itchy. This is really a tale of two t-shirts. In 2010, I purchased Icebreaker's Hopper Lite t shirt and still wear it today. That model was later discontinued. A couple of years ago, I searched for and… Full review

Minus33 Acadian Lightweight Boxer Brief

rated 5 of 5 stars Worn for seven days straight on a canoe trip in Northern Maine during variable weather in august!!! Amazing!!! We outdoor industry dedicatees remember the Ex Officio campaign claiming that their underwear could take you around the world and beyond. That their undies are so great that with a simple weekly sink washing whenever you happen into a hostel your drawers will smell of roses and no crotch rot will ever inhibit your adventuring. As is my way, I put them to the test.  They were good, I’ll… Full review

Beyond Clothing Aether Crew

rated 5 of 5 stars A great short sleeve base layer shirt that can be used on its own for hiking or under other items if the weather is colder. The shirt is super soft and extremely comfortable with ridges that help wick the sweat away from your body and keep you cool even during strenuous exercise. I would definitely recommend it for anyone who will be doing heavy outdoor activity and wants something lightweight and breathable. I got the Aether Crew base layer shirt as a reviewer and got to test it out on a recent… Full review

Airblaster Men's Ninja Suit

rated 4.5 of 5 stars Looking for a "onesie?" The Airblaster Ninja One-Piece Suit offers all I need for a full coverage, draft free, mid-weight base layer...without the bulk! As is often the case for me (being on a fixed income) I enter review contests to win gear that I need (but can't afford) for my passionate pursuits. Winning another site's campground review contest, I garnered a coveted gift certificate to Airblaster (myairblaster.com). I must admit, the gift certificate was substantial and I was no less grateful...but… Full review

Top-Rated Base Layers and Underwear

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

user rating: 3 of 5 (4)
Avalanche Wear Mogul Pant reviewed Nov 9, 2017
$50 MSRP
user rating: 5 of 5 (1)
Coldpruf Platinum II Pant reviewed Sep 29, 2017
$33 MSRP
user rating: 5 of 5 (1)
Coldpruf Platinum II Crew reviewed Sep 29, 2017
$33 MSRP
user rating: 4.5 of 5 (8)
ExOfficio Give-N-Go Boxer Brief reviewed Sep 26, 2017
$17 - $29
user rating: 3 of 5 (2)
Icebreaker Oasis Crewe S/S reviewed Sep 7, 2017
$38 - $59
user rating: 5 of 5 (1)
Minus33 Acadian Lightweight Boxer Brief reviewed Aug 11, 2017
$27 - $35
user rating: 5 of 5 (1)
Beyond Clothing Aether Crew reviewed Aug 8, 2017
$75 MSRP
user rating: 4.5 of 5 (1)
Airblaster Ninja Suit reviewed Jul 7, 2017
$60 - $119
user rating: 4 of 5 (1)
ExOfficio Sol Cool Boxer Brief reviewed Jun 8, 2017
$27 - $29
user rating: 4 of 5 (2)
Outdoor Research ActiveIce Sun Sleeves reviewed Mar 4, 2017
$22 - $28
user rating: 4.5 of 5 (1)
Ridge Merino Inversion Midweight Bottoms reviewed Feb 9, 2017
$50 MSRP
user rating: 5 of 5 (1)
U.S. Military Gen III, Level 2 ECWCS Top reviewed Jan 3, 2017
user rating: 5 of 5 (1)
MyPakage Pro Series 2-in-1 reviewed Dec 12, 2016
$90 MSRP
user rating: 4.5 of 5 (1)
Sherpa Adventure Gear Baans Tech Quarter Zip reviewed Oct 13, 2016
user rating: 5 of 5 (1)
Kora Shola 230 Crew reviewed Sep 26, 2016
$145 MSRP
user rating: 5 of 5 (1)
Terramar Mesh Pro Boxer Brief 6" reviewed Sep 7, 2016
$18 MSRP
user rating: 5 of 5 (1)
ExOfficio Give-N-Go Lacy Bikini reviewed Sep 2, 2016
$16 - $23
user rating: 4.5 of 5 (1)
Kora Shola 230 Zip reviewed Aug 4, 2016
$160 MSRP
user rating: 4.5 of 5 (2)
MyPakage Action Series Boxer Brief reviewed Jul 29, 2016
$35
user rating: 3.5 of 5 (2)
ExOfficio Give-N-Go Boxer reviewed Jul 21, 2016
$14 - $29
user rating: 5 of 5 (1)
Voormi Thermal ll Baselayer Top reviewed Jul 20, 2016
$129 MSRP
user rating: 4.5 of 5 (1)
Patagonia Capilene Lightweight Bottoms reviewed Jul 10, 2016
$29 - $49
user rating: 4 of 5 (1)
Patagonia Capilene Daily T-Shirt reviewed Feb 22, 2016
$17 - $39
user rating: 5 of 5 (1)
New Balance Performance Underwear 9 Inch Inseam Boxer Brief reviewed Nov 29, 2015
user rating: 4 of 5 (1)
Patagonia Capilene 1 Silkweight Crew reviewed Nov 19, 2015
$16 - $39
user rating: 5 of 5 (2)
Stoic Merino 200 Boxer Brief reviewed Nov 16, 2015
$41
user rating: 5 of 5 (1)
Patagonia Merino Air Bottoms reviewed Nov 9, 2015
user rating: 5 of 5 (1)
Patagonia Merino Air Hoody reviewed Sep 30, 2015
user rating: 4.5 of 5 (1)
Icebreaker Bodyfit 260 Olympia Crewe reviewed Sep 24, 2015
discontinued
user rating: 4.5 of 5 (1)
ExOfficio Give-N-Go Sport Mesh Brief reviewed Sep 20, 2015
$18 - $25
user rating: 5 of 5 (1)
Patagonia Merino 3 Midweight Hoody reviewed May 21, 2015
$56 - $70
user rating: 5 of 5 (1)
Mountain Equipment Crux LS Crew reviewed Mar 3, 2015
user rating: 4 of 5 (1)
Woolx X704 reviewed Mar 2, 2015
$170 MSRP
user rating: 5 of 5 (1)
Smartwool Midweight Turtleneck reviewed Sep 29, 2014
$85 MSRP
user rating: 5 of 5 (1)
First Lite Chama Hoody reviewed Jun 5, 2014
user rating: 5 of 5 (1)
Adidas Sport Performance Flex 360 Boxer Brief reviewed Apr 22, 2014
user rating: 4 of 5 (1)
Under Armour Original Series 9-inch Boxerjock reviewed Mar 11, 2014
user rating: 2.5 of 5 (1)
Wild Country Lightweight Base Layer Top reviewed Jan 1, 2014
user rating: 5 of 5 (2)
Stoic Alpine Merino 150 Crew - Long-Sleeve reviewed Dec 29, 2013
$55
user rating: 5 of 5 (3)
Icebreaker Bodyfit 150 Long Sleeve Crewe reviewed Dec 21, 2013
user rating: 4 of 5 (1)
Patagonia Merino 2 Lightweight T-Shirt reviewed Oct 28, 2013
$65 MSRP
user rating: 5 of 5 (2)
Icebreaker Oasis Long Sleeve Crewe reviewed Jun 15, 2016
$8 - $100
user rating: 4.5 of 5 (1)
Verve Cassandra Bra reviewed Oct 9, 2013
$38 MSRP
user rating: 4 of 5 (1)
RedRam Merino Legging reviewed Oct 5, 2013
user rating: 5 of 5 (1)
Ibex Swerve Long Sleeve Top reviewed Oct 2, 2013
discontinued
user rating: 4.5 of 5 (1)
Mountain Hardwear WayCool Arms reviewed Jun 20, 2013
$28
user rating: 5 of 5 (1)
Champion C9 Premium Boxer Briefs reviewed May 16, 2013
user rating: 3 of 5 (1)
Terramar SmartSilk Crew reviewed Mar 7, 2013
$60 MSRP
user rating: 4.5 of 5 (1)
Icebreaker GT 200 L/S Chase Zip reviewed Feb 13, 2013
discontinued
user rating: 2.5 of 5 (1)
Terramar Hot Totties Fleece Heavy Footy Performance Leggings reviewed Feb 9, 2013
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