Base Layers and Underwear

Categories

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

Brands

ExOfficio
Patagonia
Icebreaker
Arc'teryx
Marmot
Stoic
Smartwool
Ibex
Polarmax
Helly Hansen

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

user rating: 5 of 5 (7)
ExOfficio Give-N-Go Boxer Brief Boxers, Briefs, Bikini
$17 - $26
user rating: 5 of 5 (5)
Patagonia Capilene 2 Lightweight Zip-Neck Base Layer Top
$33 - $55
user rating: 5 of 5 (2)
Icebreaker 260 Midweight Tech Top Base Layer Top
$38 - $99
user rating: 5 of 5 (2)
Arc'teryx Rho LT Zip Neck Base Layer Top
$83 - $118
user rating: 5 of 5 (2)
Marmot Midweight Bottom Base Layer Bottom
$25
user rating: 5 of 5 (2)
Patagonia Merino 2 Lightweight Crew Base Layer Top
$72 - $90
user rating: 5 of 5 (2)
Patagonia Capilene 4 Expedition Weight Zip-Neck Base Layer Top
$54 - $99
user rating: 5 of 5 (2)
Stoic Merino 200 Boxer Brief Boxers, Briefs, Bikini
$41
user rating: 5 of 5 (2)
Patagonia R1 Pants Base Layer Bottom
$79 - $99
user rating: 5 of 5 (2)
Smartwool Midweight Zip T Base Layer Top
$39 - $109
user rating: 5 of 5 (2)
Stoic Alpine Merino 150 Crew - Long-Sleeve Base Layer Top
$55
user rating: 4.5 of 5 (3)
Smartwool Microweight Crew Base Layer Top
$44 - $74
user rating: 4.5 of 5 (3)
Smartwool Microweight Tee Base Layer Top
$56 - $74
user rating: 5 of 5 (1)
Icebreaker Oasis Long Sleeve Crewe Base Layer Top
$45 - $89
user rating: 5 of 5 (1)
Patagonia Capilene 2 Lightweight Crew Base Layer Top
$34 - $49
user rating: 5 of 5 (1)
Ibex Balance Briefs Boxers, Briefs, Bikini
$21 - $29
user rating: 5 of 5 (1)
Polarmax Tech Silk Crew Base Layer Top
$20
user rating: 5 of 5 (1)
Smartwool Midweight Crew Base Layer Top
$42 - $95
user rating: 5 of 5 (1)
Patagonia Merino Air Bottoms Base Layer Bottom
$129
user rating: 5 of 5 (1)
Ibex Woolies 2 Bottom Base Layer Bottom
$83 - $94
user rating: 5 of 5 (1)
Smartwool Midweight Turtleneck Base Layer Top
$54
user rating: 5 of 5 (1)
Helly Hansen Fly Pant Base Layer Bottom
$22 - $39
user rating: 5 of 5 (1)
Icebreaker Siren Bra Sports Bra
$50
user rating: 5 of 5 (1)
Terramar Hot Totties Grid Fleece Tights Base Layer Bottom
$20
user rating: 5 of 5 (1)
Patagonia Merino 3 Midweight Hoody Base Layer Top
$56 - $140
user rating: 5 of 5 (1)
Patagonia Merino Air Hoody Base Layer Top
$149
user rating: 5 of 5 (1)
Smartwool NTS Mid 250 Bottom Base Layer Bottom
$95
user rating: 5 of 5 (1)
Icebreaker Everyday Long Sleeve Crewe Base Layer Top
$39 - $60
user rating: 5 of 5 (1)
Marmot Midweight Crew LS Base Layer Top
$35 - $44
user rating: 5 of 5 (1)
Patagonia Capilene 3 Midweight Bottoms Base Layer Bottom
$24 - $59
user rating: 4 of 5 (4)
Smartwool Lightweight Zip T Base Layer Top
$47 - $100
user rating: 4 of 5 (3)
Avalanche Wear Mogul Pant Base Layer Bottom
$25 - $27
user rating: 4.5 of 5 (1)
Icebreaker 150 Ultralite LS Atlas Base Layer Top
$45
user rating: 4.5 of 5 (1)
Smartwool Microweight Bottom Base Layer Bottom
$75
user rating: 4.5 of 5 (1)
Patagonia Capilene 2 Lightweight T-Shirt Base Layer Top
$27 - $45
user rating: 4.5 of 5 (1)
ExOfficio Give-N-Go Sport Mesh Brief Boxers, Briefs, Bikini
$26
user rating: 4.5 of 5 (1)
Icebreaker Anatomica Brief Boxers, Briefs, Bikini
$26
user rating: 4.5 of 5 (1)
Smartwool Midweight Funnel Zip Base Layer Top
$98 - $115
user rating: 4.5 of 5 (1)
Kenyon Power Stretch Baselayer Bottoms Base Layer Bottom
$35
user rating: 4 of 5 (2)
Smartwool Midweight Bottom Base Layer Bottom
$42 - $95
user rating: 4 of 5 (1)
SportHill Northwind Unders Boxers, Briefs, Bikini
$36 - $37
user rating: 4 of 5 (1)
Patagonia Capilene 1 Silkweight Crew Base Layer Top
$16 - $39
user rating: 4 of 5 (1)
Terramar Thermolator II Pant Base Layer Bottom
$17 - $28
user rating: 4 of 5 (1)
Stoic Breathe Composite Bottom Base Layer Bottom
$27 - $31
user rating: 4 of 5 (1)
ExOfficio Give-N-Go Lacy Full Cut Brief Boxers, Briefs, Bikini
$13
user rating: 4 of 5 (1)
Patagonia Capilene 1 Silkweight T-Shirt Base Layer Top
$10 - $35
user rating: 4 of 5 (1)
Under Armour Original Series 9-inch Boxerjock Boxers, Briefs, Bikini
$20
user rating: 4 of 5 (1)
Ibex Zepher Zip T-Neck Base Layer Top
$62 - $79
user rating: 4 of 5 (1)
Icebreaker 200 Lightweight Legging Base Layer Bottom
$42 - $60
user rating: 3.5 of 5 (1)
Outdoor Research ActiveIce Sun Sleeves Arm or Leg Sleeves
$29
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