Base Layers and Underwear

Categories

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

Brands

REI
Icebreaker
Columbia
Patagonia
Terramar
ExOfficio
CEP
Kenyon
Moving Comfort
Marmot

Genders

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

Price

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

Recent Base Layer Reviews

Icebreaker Men's Everyday Long Sleeve Crewe

rated 5 of 5 stars A superb, comfortable baselayer for cool weather activities. I started wearing Merino baselayers back in 2003, when they first seemed to be hitting the market. In those days, it was Smartwool, and not much else. Most of the tops I purchased those many years ago, are now in tatters, so it was time to replace. Having had good recent success with Icebreaker, I found this shirt on sale, and took the bait. I have found Icebreaker's fit to be slightly on the small side, so even though I usually wear XL… Full review

Patagonia Men's Capilene 1 Silkweight T-Shirt

rated 4 of 5 stars Good, solid base layer. This is a solid T-shirt. The material has a slight sheen to it, is a bit stretchy and very comfortable. It wicks and dries very quickly. I bought mine in black about 6 months ago. It's been washed about 10 times and the seams and stitching still look great. I hike in just this shirt during the day and haven't had any problems with snares from gear or branches, so I'd say it's durable. It still smells fine, and I think whatever odor guard Patagonia is using works well. It's… Full review

ExOfficio Give-N-Go Boxer Brief

rated 5 of 5 stars Fastest drying underwear that I have ever had. Makes for the perfect travel and camping underwear. When I first bought a pair, I thought that they were very pricey. Now on my sixth pair and I feel that they are well worth the money. I have hand-washed these boxer briefs in streams, sinks and in the shower. If I wash them in the morning and hang dry, they are dry by the afternoon/evening. Two pair, is all you need for your adventures. Full review

Patagonia Men's Capilene 2 Lightweight Zip-Neck

rated 5 of 5 stars Easy care material that can be washed in a sink as well as in a washing machine. Lightweight and durable. My most durable layering piece. I have tried many other alternatives for active heat retention base layers, and always come back to this piece. Deals well with odor, the rubbing of straps through clothing, and drys quickly. Freedom of movement is incorporated in the design. Capilene has worked very well for me. Try a garment on your next adventure.  Full review

Ibex Men's Woolies 2 Bottom

rated 5 of 5 stars My butt always froze on a wet ski lift—until these. These rock—no problems after 9 years. Very comfortable and never overheating thanks to the way merino regulates temperature. Wool keeps you warm even when wet. Never gotten moist from sweat, wicks well. Still looks new, quality durable construction. Full review

New Balance Performance Underwear 9 Inch Inseam Boxer Brief

rated 5 of 5 stars Long inseam briefs have made a huge difference for me in stopping inner leg chaffing, in rough terrain requiring leg lifting and plunging over obstacles. Half (or less) the cost of equivalent Under Armour and ExOfficio options, and highly durable, these have become my standard "go-to" gear. Ever have a hike, with unexpectedly rough terrain that resulted in chaffing in the upper, inner thigh area? Unfortunately I have experienced this once to the degree that bandages were needed for a week afterwards. Full review

Patagonia Men's Capilene 1 Silkweight Crew

rated 4 of 5 stars Comfortable and light with powerful wicking properties, this shirt works well as a base layer and even better as a standalone cooling shirt. Great for those who need to stay dry in cold weather and those who would enjoy the evaporative cooling effect when hot. Fit & Comfort Made from a soft and resiliently stretchy 94% polyester and 6% spandex, the Capilene 1 material feels great against the skin, which is important for a base layer. The sized large I purchased was listed as being a "slim fit"… Full review

Stoic Merino 200 Boxer Brief

rated 5 of 5 stars Merino wool, good fit. I purchased the large size first (I'm 36" waist) and liked them, but subsequent purchases at medium did well too. Will continue to buy as needed. Live in the mountains, great start to everyday dressing. Full review

Patagonia Men's Merino Air Bottoms

rated 5 of 5 stars The Patagonia Merino Air Bottoms exceeded my expectations. Game changing merino-synthetic fabric with no seams and effortless stretch. Material that breathes, holds heat, and moves water away from your skin as you heat up. Patagonia is one of the companies that other brands hate and simultaneously wish they could be.  The Merino Air Bottoms are made from recycled polyester and merino wool (the stuff men's suits are made of) grown in Patagonia.  I used to think that no single baselayer material… Full review

Top-Rated Base Layers and Underwear

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

REI Midweight Crew Heather Top Base Layer Top
$5 - $13
Icebreaker Oasis Legless Base Layer Bottom
$5 - $80
REI Expedition-Weight Crew Top Base Layer Top
$7
Columbia Coolest Cool Boy Short Boxers, Briefs, Bikini
$9
Columbia Coolest Cool Sleeveless Top Base Layer Top
$10 - $21
user rating: 4 of 5 (1)
Patagonia Capilene 1 Silkweight T-Shirt Base Layer Top
$10 - $35
user rating: 2.5 of 5 (1)
Terramar Hot Totties Fleece Heavy Footy Performance Leggings Base Layer Bottom
$11
Terramar Hot Totties Fleece Heavy Full Leg Performance Leggings Base Layer Bottom
$11
ExOfficio Give-N-Go Lacy Tank Base Layer Top
$11 - $19
ExOfficio Give-N-Go Shelf Bra Camisole Sports Bra
$12 - $42
ExOfficio Give-N-Go String Bikini Boxers, Briefs, Bikini
$12 - $40
ExOfficio Give-N-Go Lacy Thong Boxers, Briefs, Bikini
$12 - $19
ExOfficio Give-N-Go Lacy Low Rise Bikini Boxers, Briefs, Bikini
$12 - $19
ExOfficio Give-N-Go Brief Boxers, Briefs, Bikini
$12 - $20
CEP Compression Calf Sleeves Arm or Leg Sleeves
$12 - $15
ExOfficio Give-N-Go Bikini Brief Boxers, Briefs, Bikini
$13 - $22
Kenyon Polarskins Long Underwear Shirt - Midweight Base Layer Top
$13 - $19
ExOfficio Give-N-Go Sport Brief Boxers, Briefs, Bikini
$13 - $20
ExOfficio Give-N-Go Lacy Bikini Boxers, Briefs, Bikini
$13 - $21
Patagonia Barely Bikini Boxers, Briefs, Bikini
$13 - $22
Patagonia Active Briefs Boxers, Briefs, Bikini
$13 - $24
user rating: 4 of 5 (1)
ExOfficio Give-N-Go Lacy Full Cut Brief Boxers, Briefs, Bikini
$13
REI Midweight Heather Long Underwear Bottoms Base Layer Bottom
$14
Kenyon Polarskins Long Undewear Shirt - Lightweight Base Layer Top
$14
Kenyon Polarskins Long Underwear Bottoms - Lightweight Base Layer Bottom
$14
Kenyon Polarskins Long Underwear Shirt - Lightweight Base Layer Top
$14
ExOfficio Give-N-Go Tank Top Base Layer Top
$14 - $20
Moving Comfort Workout Thong Boxers, Briefs, Bikini
$14 MSRP
Patagonia Barely Hipster Boxers, Briefs, Bikini
$14 - $22
Patagonia Active Hipster Boxers, Briefs, Bikini
$14 - $24
Patagonia Capilene 2 Lightweight Briefs Boxers, Briefs, Bikini
$14 - $30
ExOfficio Give-N-Go Boxer Boxers, Briefs, Bikini
$14 - $26
Marmot DriClime Crew LS Base Layer Top
$15
REI Seamless Long-Sleeve T-Shirt Base Layer Top
$15
Kenyon Polarskins Long Underwear Shirt - Heavyweight Base Layer Top
$15 - $16
Patagonia Barely Thong Boxers, Briefs, Bikini
$15 - $22
Patagonia Capilene 1 Silkweight Briefs Boxers, Briefs, Bikini
$15
Patagonia Capilene 1 Silkweight Boxers Boxers, Briefs, Bikini
$15 - $30
Tasc Performance Endurance Sport Bra Sports Bra
$15 - $30
Dynafit Performance Sleeves Arm or Leg Sleeves
$16
REI Midweight Crew Print Top Base Layer Top
$16 - $22
Cloudveil Lightweight Crewneck Top Base Layer Top
$16 - $35
REI Midweight Long Underwear Bottoms Base Layer Bottom
$16 - $39
user rating: 4 of 5 (1)
Patagonia Capilene 1 Silkweight Crew Base Layer Top
$16 - $39
Moving Comfort Workout Bikini Boxers, Briefs, Bikini
$16
Icebreaker Anatomica Crewe Base Layer Top
$16 - $70
SAXX Fiesta Boxer Boxers, Briefs, Bikini
$16 - $24
SAXX Ultra Boxer Fly Boxers, Briefs, Bikini
$16 - $29
REI Mesh MTS Briefs Base Layer Bottom
$19
Terramar Authentic Thermal Underwear Crew Base Layer Top
$17
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