Base Layers and Underwear

Category

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

Brands

ExOfficio
Patagonia
Icebreaker
Arc'teryx
Marmot
Smartwool
Ibex
Voormi
Coldpruf
Helly Hansen

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 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

Terramar Men's Silk Pant

rated 2 of 5 stars Great pajamas, poor base layer. Thermasilk base layer from Terramar is not adequate for outdoor sports or any type of physical activity: It is far too weak and fragile. It is too thin to provide any warmth, and when wet, they feel cold. They will rip and shred if worn in an endurance sports or hard work setting. Also, they do not hold their shape. Hand-washing brings back their original shape, but they become limp after a couple of days out in the field. On the other hand, they make the best pajamas,… Full review

Sherpa Adventure Gear Men's Baans Tech Quarter Zip

rated 4.5 of 5 stars Used this for basecamp warmth after hiking 7 to 9 hours in the fall Maine weather. After hiking all day relied on this to stay warm while setting up campsite and in the cool fall Maine mornings to stay warm while breaking down. Keeps you extremely warm and comfortable during these critical times. This pullover fits great and is extremely comfortable after a long day of hard hiking. Provides essential warmth in the cool fall Maine weather after a great day's hiking, or in the early cold fall mornings. Full review

Kora Shola 230 Crew

rated 5 of 5 stars Warm, soft, well-fitting, comfortable even in warmer temperatures. It's been years since I've lived in a climate cold enough for a base layer. Actually it's been 13 years... I remember them as itchy, uncomfortable, and most of the time I would rather freeze than wear them. I definitely have needed them since returning, and I decided to bite the bullet and pick up a set for the upcoming winter, which the Farmer's Almanac says will be one of the coldest winters in some time. I typically would not… Full review

Patagonia Men's Capilene 2 Lightweight Zip-Neck

rated 4.5 of 5 stars Super lightweight at 6.5 oz. Very quick dry. Super open breathability without giving up warmth. Great light, breathable, super quick dry base layer. Fits snug to body, but doesn't stick. Allows for easy layering without that cramped tight feeling. Don't leave home without it!!!! Full review

Terramar Mesh Pro Boxer Brief 6"

rated 5 of 5 stars Unbelievable! Great value and extremely comfortable! These Terramar High Performance Boxer Briefs were a lifesaver. Not only did they fit great, they were easy to wash, dried out fast, and provided plenty of support on those long day hikes. Did I mention they are less expensive than most of the other odor-eliminating briefs I came across as well? If you are looking for new briefs give these a shot. You will not be disappointed. Full review

ExOfficio Give-N-Go Lacy Bikini

rated 5 of 5 stars This underwear is great for hiking, backpacking, travel, and everyday use. The material is soft, it wicks moisture and has a comfortable fit. It's hard to find women's underwear that stays comfortable through miles of backpacking, but the ExOfficio Give-N-Go Lacy Bikini brief does just that. The nylon/spandex blend has four-way stretch that provides good coverage without bunching up or chafing and feels soft to touch. The flat lacy band provides a feminine touch to a technical product, which is… 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 - $30
user rating: 5 of 5 (6)
Patagonia Capilene 2 Lightweight Zip-Neck Base Layer Top
$30 - $55
user rating: 5 of 5 (2)
Icebreaker Oasis Long Sleeve Crewe Base Layer Top
$49 - $110
user rating: 5 of 5 (2)
Arc'teryx Rho LT Zip Neck Base Layer Top
$87 - $125
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
$55 - $90
user rating: 5 of 5 (2)
Patagonia Capilene 4 Expedition Weight Zip-Neck Base Layer Top
$45 - $99
user rating: 5 of 5 (2)
Patagonia R1 Pants Base Layer Bottom
$99 - $119
user rating: 5 of 5 (2)
Smartwool Midweight Zip T Base Layer Top
$65 - $100
user rating: 5 of 5 (2)
Icebreaker Everyday Long Sleeve Crewe Base Layer Top
$49 - $70
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
$20
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
$55 - $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
$77
user rating: 5 of 5 (1)
Ibex Woolies 2 Bottom Base Layer Bottom
$52 - $95
user rating: 5 of 5 (1)
Helly Hansen Fly Pant Base Layer Bottom
$18 - $40
user rating: 5 of 5 (1)
Icebreaker Siren Bra Sports Bra
$50
user rating: 5 of 5 (1)
Patagonia Merino 3 Midweight Hoody Base Layer Top
$98 - $140
user rating: 5 of 5 (1)
ExOfficio Give-N-Go Lacy Bikini Boxers, Briefs, Bikini
$13 - $23
user rating: 5 of 5 (1)
Patagonia Merino Air Hoody Base Layer Top
$89
user rating: 5 of 5 (1)
Under Armour Catalyst Longsleeve T Base Layer Top
$25
user rating: 5 of 5 (1)
Smartwool NTS Mid 250 Bottom Base Layer Bottom
$69 - $100
user rating: 5 of 5 (1)
Marmot Midweight Crew LS Base Layer Top
$28
user rating: 5 of 5 (1)
Patagonia Capilene 3 Midweight Bottoms Base Layer Bottom
$21 - $59
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)
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)
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)
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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