Base Layers and Underwear

Category

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

Brand

ExOfficio
Icebreaker
L.L.Bean
Under Armour
Smartwool
Patagonia
Polarmax
EMS
REI
Terramar

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

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

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

Top-Rated Base Layers and Underwear

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

ExOfficio Give-N-Go Bikini Brief Boxers, Briefs, Bikini
$4 - $18
Icebreaker Oasis Legless Base Layer Bottom
$5 - $80
ExOfficio Give-N-Go Lacy Tank Base Layer Top
$5
ExOfficio Give-N-Go Full Cut Brief Boxers, Briefs, Bikini
$5 - $20
user rating: 4 of 5 (1)
ExOfficio Give-N-Go Lacy Full Cut Brief Boxers, Briefs, Bikini
$6 - $23
ExOfficio Give-N-Go Shelf Bra Camisole Sports Bra
$7 - $38
Icebreaker Sprite Racerback Bra Sports Bra
$7 - $60
ExOfficio Give-N-Go Lacy Thong Boxers, Briefs, Bikini
$8 - $21
user rating: 5 of 5 (2)
Icebreaker Oasis Long Sleeve Crewe Base Layer Top
$8 - $100
ExOfficio Give-N-Go Tank Top Base Layer Top
$8 - $20
L.L.Bean Power Dry Stretch Base Layer, Midweight Short-Sleeve Crew Base Layer Top
$10
ExOfficio Give-N-Go String Bikini Boxers, Briefs, Bikini
$12 - $18
Under Armour Original Series 6-inch Boxerjock Boxers, Briefs, Bikini
$12 - $20
Smartwool PhD Compression Calf Sleeve Arm or Leg Sleeves
$12 - $27
user rating: 4 of 5 (1)
Patagonia Capilene Daily T-Shirt Base Layer Top
$12 - $39
Patagonia Capilene Daily Briefs Boxers, Briefs, Bikini
$12 - $25
Patagonia Capilene Bottom Base Layer Bottom
$12 - $25
Polarmax Maxride Pants Base Layer Bottom
$13 - $14
Smartwool Microweight Bikini Boxers, Briefs, Bikini
$13 - $16
EMS Techwick Hydro 1/2 Zip Pullover Base Layer Top
$14
ExOfficio Give-N-Go Brief Boxers, Briefs, Bikini
$14 - $20
Polarmax Maxride Crew Base Layer Top
$14
Smartwool Microweight Thong Boxers, Briefs, Bikini
$14
 
Patagonia Capilene Team T-Shirt Base Layer Top
$14
Patagonia Active Boy Short Boxers, Briefs, Bikini
$14 - $29
Patagonia Capilene Daily Boxer Briefs Boxers, Briefs, Bikini
$14 - $29
ExOfficio Give-N-Go Lacy Low Rise Bikini Boxers, Briefs, Bikini
$15 - $21
REI Heavyweight Crew Long Underwear Top Base Layer Top
$15 - $29
REI Heavyweight Half-Zip Long Underwear Top Base Layer Top
$15 - $34
 
Polarmax Tech Silk Boxer Boxers, Briefs, Bikini
$15
user rating: 4 of 5 (1)
Terramar Thermolator II Pant Base Layer Bottom
$15 - $26
Terramar Stretch Thermolator Pant Base Layer Bottom
$15 - $34
Under Armour HeatGear Legging Base Layer Bottom
$15 - $24
SAXX Ultra Tri-Blend Boxer Fly Boxers, Briefs, Bikini
$16
Moving Comfort Rebound Racer Sports Bra
$16 - $50
Moving Comfort Workout Bikini Boxers, Briefs, Bikini
$16 MSRP
REI Mesh MTS Briefs Base Layer Bottom
$19
user rating: 5 of 5 (1)
ExOfficio Give-N-Go Lacy Bikini Boxers, Briefs, Bikini
$17 - $23
user rating: 5 of 5 (7)
ExOfficio Give-N-Go Boxer Brief Boxers, Briefs, Bikini
$17 - $29
Terramar Silk Pointelle Scoop Base Layer Top
$17
Polarmax Double Base Layer Pant Base Layer Bottom
$17 - $22
Icebreaker Oasis Long Sleeve Half Zip Hood Base Layer Top
$17 - $76
Smartwool Microweight Brief Boxers, Briefs, Bikini
$17 - $18
Patagonia Capilene Lightweight Tank Top Base Layer Top
$17 - $23
user rating: 5 of 5 (1)
Patagonia Capilene 3 Midweight Bottoms Base Layer Bottom
$17 - $59
Patagonia Capilene Daily Boxers Boxers, Briefs, Bikini
$17 - $35
user rating: 3.5 of 5 (2)
ExOfficio Give-N-Go Boxer Boxers, Briefs, Bikini
$17 - $29
ExOfficio Give-N-Go Cross Over Bra Sports Bra
$18 - $25
user rating: 4.5 of 5 (1)
ExOfficio Give-N-Go Sport Mesh Brief Boxers, Briefs, Bikini
$18 - $25
Polarmax Double Base Layer Crew Base Layer Top
$18 - $22
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