Base Layers and Underwear

Category

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

Brands

ExOfficio
Icebreaker
Arc'teryx
Marmot
Patagonia
Smartwool
Minus33
Ibex
Voormi
Coldpruf

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

Minus33 Acadian Lightweight Boxer Brief

rated 5 of 5 stars Worn for 7 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 for the dyrt and got to test it out… 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 a TheDyrt 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

ExOfficio Sol Cool Boxer Brief

rated 4 of 5 stars Jade infused fabric pulls moisture from your body for a cool sensation. Slim fit does not bunch up. I was sent a pair of ExOfficio Sol Cool boxer briefs in late January for testing and review. I actually tried to wear them during the winter but found that they were just too cool for comfort at that time of the year. Once things started to warm up I gave them a thorough workout. Comprised of 52% Cotton, 42% Nylon, 6% Spandex, the nylon has been infused with Jade, yes, Jade the rock. Apparently,… Full review

Outdoor Research ActiveIce Sun Sleeves

rated 5 of 5 stars Out of all the clothes I’ve used for hiking this is by far the cleverest, well executed, and best functional garment I had. I hiked over 1,000 miles with those sleeves, and did it in blazing sun, high altitude high radiation, and hot conditions. I have very white sensitive skin, and I was appalled by the thought of carrying and applying sun screen for the whole trip. Fortunately I came across the ActiveIce Sun Sleeves that offered the ideal solution for sun protection. Pros: Blocks the sun! It… Full review

Ridge Merino Inversion Midweight Bottoms

rated 4.5 of 5 stars These high quality, high performance mid-weight base layer bottoms perform without adding unnecessary bulk! Unrestrictive and warm, Ridge’s new base layer line is ideal for people who have an active outdoor lifestyle. Whether skiing, backpacking, or even doing outdoor chores, the merino wool Inversion will help regulate temperature regardless of the conditions! A winter afternoon walk with Otto SPECS 18.5 micron merino wool 190g weight UPF 50+ 100% recycled polyester waistband Flatlocked seams… Full review

Avalanche Wear Women's Mogul Fleece Legging

rated 5 of 5 stars Where I live temperatures can drop well below zero I have never even thought about wearing a second pair of pants. The inner fleece lining is super soft and wicks moisture away from your skin also blocks wind. Washes well without breaking down. I've had my pair for two years and they're still my go-to winter running pants. Stretch as well when running. I have the woman's version of these pants, but could not find them on the site and wanted to express how much I truly love these pants. Full review

U.S. Armed Forces Gen III, Level 2 ECWCS Top

rated 5 of 5 stars U.S. made Polartec Power Grid fleece top for $20. Compare to the $100 Patagonia R1 which is now made overseas. I find myself wearing the level 2 grid fleece top (aka waffle top) more than any other garment when playing outdoors. Here's why: Ultra breathable Great wicking properties Warm, even as an outer layer Versatile: can be used effectively as a base, mid, or outer layer Thumb holes to facilitate the donning of other layers Half zip for venting Even if I do sweat while wearing this, the impressive… Full review

MyPakage Pro Series 2-in-1

rated 5 of 5 stars Pro series long underwear and athletic shorts in one package. The unique MyPakage 3 dimensional pouch protects your precious parts. Unless you have worn MyPakage underwear, you are really missing a great experience. Utilizing their 3-dimensional keyhole technology pouch that surrounds your package, they give you the best feeling underwear on the planet. There is no more adjusting your package because the pouch keeps everything nicely tucked away and not in constant contact with your legs. Forget… Full review

Top-Rated Base Layers and Underwear

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

user rating: 5 of 5 (7)
ExOfficio Give-N-Go Boxer Brief Boxers, Briefs, Bikini
$17 - $29
user rating: 5 of 5 (2)
Icebreaker Oasis Long Sleeve Crewe Base Layer Top
$8 - $100
user rating: 5 of 5 (2)
Arc'teryx Rho LT Zip Neck Base Layer Top
$40 - $125
user rating: 5 of 5 (2)
Marmot Midweight Bottom Base Layer Bottom
$49
user rating: 5 of 5 (2)
Patagonia Capilene 4 Expedition Weight Zip-Neck Base Layer Top
$57
user rating: 5 of 5 (2)
Patagonia R1 Pants Base Layer Bottom
$119
user rating: 5 of 5 (2)
Smartwool Midweight Zip T Base Layer Top
$45 - $100
user rating: 5 of 5 (2)
Icebreaker Everyday Long Sleeve Crewe Base Layer Top
$40 - $70
user rating: 5 of 5 (1)
Minus33 Acadian Lightweight Boxer Brief Boxers, Briefs, Bikini
$36
user rating: 5 of 5 (1)
Patagonia Capilene 2 Lightweight Crew Base Layer Top
$30 - $49
user rating: 5 of 5 (1)
Ibex Balance Briefs Boxers, Briefs, Bikini
$35
user rating: 5 of 5 (1)
Voormi Thermal ll Baselayer Top Base Layer Top
$129
user rating: 5 of 5 (1)
Smartwool Midweight Crew Base Layer Top
$26 - $95
user rating: 5 of 5 (1)
Coldpruf Platinum Pants Base Layer Bottom
$20
user rating: 5 of 5 (1)
Patagonia Merino Air Bottoms Base Layer Bottom
$64
user rating: 5 of 5 (1)
Ibex Woolies 2 Bottom Base Layer Bottom
$67 - $95
user rating: 5 of 5 (1)
Helly Hansen Fly Pant Base Layer Bottom
$30
user rating: 5 of 5 (1)
Icebreaker Siren Bra Sports Bra
$38 - $50
user rating: 5 of 5 (1)
ExOfficio Give-N-Go Lacy Bikini Boxers, Briefs, Bikini
$10 - $23
user rating: 5 of 5 (1)
Patagonia Merino Air Hoody Base Layer Top
$149 - $11,988
user rating: 5 of 5 (1)
Smartwool NTS Mid 250 Bottom Base Layer Bottom
$50 - $94
user rating: 5 of 5 (1)
Patagonia Capilene 3 Midweight Bottoms Base Layer Bottom
$17 - $59
user rating: 5 of 5 (6)
Patagonia Capilene 2 Lightweight Zip-Neck Base Layer Top
user rating: 5 of 5 (3)
Icebreaker Bodyfit 150 Long Sleeve Crewe Base Layer Top
user rating: 5 of 5 (2)
Icebreaker 260 Midweight Tech Top Base Layer Top
$110 MSRP
user rating: 5 of 5 (2)
Marmot Lightweight Crew LS Base Layer Top
$45 MSRP
user rating: 5 of 5 (2)
Patagonia Merino 2 Lightweight Crew Base Layer Top
$70 MSRP
user rating: 5 of 5 (2)
Stoic Alpine Merino 150 Crew - Long-Sleeve Base Layer Top
user rating: 5 of 5 (2)
Under Armour ColdGear Fitted Legging Base Layer Bottom
$50 MSRP
user rating: 5 of 5 (1)
Champion C9 Premium Boxer Briefs Boxers, Briefs, Bikini
user rating: 5 of 5 (1)
Kora Shola 230 Crew Base Layer Top
$145 MSRP
user rating: 5 of 5 (1)
Terramar Mesh Pro Boxer Brief 6" Boxers, Briefs, Bikini
$18 MSRP
user rating: 5 of 5 (1)
Stoic Merino 200 1-Z Suit One-Piece Base Layer
user rating: 5 of 5 (1)
Mountain Hardwear Power Stretch Zip T Base Layer Top
$95 MSRP
user rating: 5 of 5 (1)
Polarmax Tech Silk Crew Base Layer Top
$30 MSRP
user rating: 5 of 5 (1)
Omni-Wool Midweight Crew Base Layer Top
$35 MSRP
user rating: 5 of 5 (1)
REI Midweight Polartec Power Dry Zip-T Base Layer Top
$37 MSRP
 
user rating: 5 of 5 (1)
Duofold Orginal Union Suit
user rating: 5 of 5 (1)
Patagonia Capilene 1 Silkweight Scoop Base Layer Top
$45 MSRP
user rating: 5 of 5 (1)
Adidas Sport Performance Flex 360 Boxer Brief Boxers, Briefs, Bikini
 
user rating: 5 of 5 (1)
Beyond Clothing Aether Crew Base Layer Top
user rating: 5 of 5 (1)
New Balance Performance Underwear 9 Inch Inseam Boxer Brief Boxers, Briefs, Bikini
user rating: 5 of 5 (1)
Smartwool Midweight Turtleneck Base Layer Top
$85 MSRP
user rating: 5 of 5 (1)
Ortovox Merino 130 Short Sleeve Base Layer Top
$82 MSRP
user rating: 5 of 5 (1)
Terramar Hot Totties Grid Fleece Tights Base Layer Bottom
user rating: 5 of 5 (1)
Patagonia Merino 3 Midweight Hoody Base Layer Top
$125 MSRP
user rating: 5 of 5 (1)
Avalanche Wear Mogul Fleece Legging Base Layer Bottom
$50 MSRP
 
user rating: 5 of 5 (1)
Terramar EC2 Transport
user rating: 5 of 5 (1)
First Lite Chama Hoody Base Layer Top
user rating: 5 of 5 (1)
MyPakage Pro Series 2-in-1 Performance Pant/Tight / Boxers, Briefs, Bikini
$90 MSRP
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