Base Layer Bottoms

Brands

SmartWool
Avalanche Wear
RedRam
Terramar
Icebreaker
Under Armour
Patagonia
Stoic
Eddie Bauer
Kenyon

Genders

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

Price

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

Recent Base Layer Bottom Reviews

SmartWool Women's NTS Mid 250 Bottom

rated 5 of 5 stars These are without a doubt the best long johns I have ever owned! I am 5'7" 125lbs and I bought the mediums, they fit like a glove (well literally as they are next to skin).  So comfy and non restricting, you barely notice you have them on.  I did a lot of research in my quest for super warm long johns and came to the conclusion that wool was going to be the warmest.  I am not disappointed. The waist band is wider so they don't roll down as some other brands do.  I love being outdoors but don't… Full review

Avalanche Wear Mogul Pant

rated 5 of 5 stars These pants are incredible. I've worn and washed them 100 times and they still look and feel new. These pants are INCREDIBLE. I have washed and worn them 100 times. Not only have I been wearing them as a base layer under my ski pants but I wear their legging style all winter. Since I live in leggings all year these are perfect for winter because they have a fleece lining and I swear they are wind block (even though I don't think they are). Anyway, I have been reading about other people's pants pilling,… Full review

Avalanche Wear Mogul Pant

rated 1.5 of 5 stars Do not pay full price! These are very warm, and have a great athletic look. But the inner thigh started to pill after just a few hours of moderate activity. I'm 5 feet tall, 118 pounds, usually wear a size 6, and the small fit great after I hemmed them 4 inches. But because of the pulling, they are for only around the house now. Not that anyone is looking at my crotch to see the pilling, but still. Glad I had an extra 35% off at STP, because I would have been livid if I had paid full price. But… Full review

RedRam Merino Legging

rated 4 of 5 stars From what I can tell, these are made from Icebreakers' 150 Merino wool. They're thinner than any of my other wool leggings, but they feel great night after night, and while cycling through the mountains in early autumn. I purchased both a small and medium of these leggings recently, and ended up sticking with the medium (29-inch waist, 35-inch inseam). I've been a huge proponent of Merino wool for years, and have worn my SmartWool women's medium black leggings every day for months at a time over… Full review

SmartWool Women's Midweight Bottom

rated 3.5 of 5 stars SmartWool bottoms keep you toasty but don't itch like most wools. They are durable and machine washable. And they don't retain odor like capeliene material. Love my SmartWool thermals. They keep me toasty warm and are the only wool I can wear that doesn't itch me. They are machine washable and hold up really well. After a few days of wearing they do begin to stretch in certain areas. They do a much better job at not retaining odor (unlike Patagonia's Capilene material - yuck!).  Full review

Terramar Men's SmartSilk Tights

rated 3 of 5 stars Initial Review: These base layer bottoms are a very good skin tight fit, without the feel of compression. Waistline is a little weird, the inner elastic can fold inside the outer. I found the product to have begun pilling before the first wash...? Overall durability is a concern. If they last, I will happily rate this product to at least four stars. Medium is a great fit for slim built 5'10" 155lbs. I recently received this base layer as a giveaway, THANK YOU, Trailspace!!! This is an initial review... … Full review

Terramar Hot Totties Fleece Heavy Footy Performance Leggings

rated 2.5 of 5 stars Wonderfully soft and fuzzy inside with a smooth, silky feel outside. Unfortunately, the tights run VERY short! Wonderfully soft and fuzzy inside with a smooth, silky feel outside.  However, I am severely disappointed - I am 5' 4.5", 130 pounds with a 30 inch inseam.  I purchased these in a size Medium and they run short! I really had to tug to get the crotch up where it should be and it is still about 1/2" shy. Moreover, my toes now feel like they are being pinched due to the tights being pulled… Full review

Terramar Hot Totties Grid Fleece Tights

rated 5 of 5 stars So warm and comfortable. I love these for lounging around or trekking out in the snow. Great as a base layer under pants or with a skirt or dress. I have two of the grid fleece hoodies as well. The warmest, coziest, most snuggley base layer ever! <3 Full review

Icebreaker Men's 200 Lightweight Legging

rated 4 of 5 stars Very good product ;) This product is good for skiing and cycling and hiking. I have washed it many times, but it is holding up very well.  I have the Icebreaker Men's 200 top as well and it is holding up better than expected.  I have had both of these products for many years and I wear them for 3-to-4 months and I have no complaints.   You do have to worry about bugs eating your very expensive undergarments and rodents. These are wool, so moths and such will eat them and when I was in Vietnam… Full review

Top-Rated Base Layer Bottoms

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

SmartWool NTS Mid 250 Bottom
user rating: 5 of 5 (1)
SmartWool
NTS Mid 250 Bottom
reviewed Sep 29, 2014
$95 - $100
Avalanche Wear Mogul Pant
user rating: 3 of 5 (2)
Avalanche Wear
Mogul Pant
reviewed May 28, 2014
$30
RedRam Merino Legging
user rating: 4 of 5 (1)
RedRam
Merino Legging
reviewed Oct 5, 2013
Terramar Hot Totties Fleece Heavy Footy Performance Leggings
user rating: 2.5 of 5 (1)
Terramar
Hot Totties Fleece Heavy Footy Performance Leggings
reviewed Feb 9, 2013
$10
Terramar Hot Totties Grid Fleece Tights
user rating: 5 of 5 (1)
Terramar
Hot Totties Grid Fleece Tights
reviewed Feb 9, 2013
$27 - $28
Icebreaker 200 Lightweight Legging
user rating: 4 of 5 (1)
Icebreaker
200 Lightweight Legging
reviewed Feb 7, 2013
$58 - $72
Under Armour ColdGear Fitted Legging
user rating: 5 of 5 (2)
Under Armour
ColdGear Fitted Legging
reviewed Feb 6, 2013
$50 MSRP
Terramar SmartSilk Tights
user rating: 4 of 5 (2)
Terramar
SmartSilk Tights
reviewed Mar 7, 2013
$45
Patagonia Capilene 3 Midweight Bottoms
user rating: 5 of 5 (1)
Patagonia
Capilene 3 Midweight Bottoms
reviewed Jan 19, 2013
$15 - $55
Stoic Breathe Composite Bottom
user rating: 4 of 5 (1)
Stoic
Breathe Composite Bottom
reviewed Nov 1, 2012
$49
SmartWool Microweight Bottom
user rating: 4.5 of 5 (1)
SmartWool
Microweight Bottom
reviewed Feb 23, 2012
$55 - $75
Eddie Bauer First Ascent Midweight Baselayer Pants
user rating: 4.5 of 5 (1)
Eddie Bauer
First Ascent Midweight Baselayer Pants
reviewed Jan 28, 2011
$45 MSRP
Kenyon Power Stretch Baselayer Bottoms
user rating: 4.5 of 5 (1)
Kenyon
Power Stretch Baselayer Bottoms
reviewed Nov 4, 2010
$35 - $44
Under Armour ColdGear Metal Legging
user rating: 0 of 5 (1)
Under Armour
ColdGear Metal Legging
reviewed Oct 25, 2010
discontinued
 
user rating: 4.5 of 5 (1)
SmartWool
Synergy Sport Pant
reviewed May 23, 2010
discontinued
Under Armour ColdGear Frosty Tight
user rating: 5 of 5 (1)
Under Armour
ColdGear Frosty Tight
reviewed Dec 20, 2009
discontinued
Sugoi Firewall Tight
user rating: 2.5 of 5 (1)
Sugoi
Firewall Tight
reviewed Jan 3, 2009
discontinued
 
user rating: 5 of 5 (1)
Haglofs
Bungy Q Tights
reviewed Dec 7, 2008
REI Heavyweight MTS Bottoms
user rating: 4 of 5 (1)
REI
Heavyweight MTS Bottoms
reviewed Oct 17, 2008
$35 MSRP
Ibex Balance Briefs
user rating: 5 of 5 (1)
Ibex
Balance Briefs
reviewed Jun 16, 2008
$30
Helly Hansen Fly Pant
user rating: 5 of 5 (1)
Helly Hansen
Fly Pant
reviewed Jun 15, 2008
$40
SmartWool Midweight Bottom
user rating: 4 of 5 (2)
SmartWool
Midweight Bottom
reviewed Sep 23, 2013
$47 - $95
Isis Wool Tight
user rating: 4 of 5 (1)
Isis
Wool Tight
reviewed Oct 15, 2007
discontinued
 
user rating: 5 of 5 (1)
Sugoi
Global Tight
reviewed Jan 18, 2007
discontinued
Marmot Midweight Bottom
user rating: 5 of 5 (2)
Marmot
Midweight Bottom
reviewed Jul 11, 2012
$30
Patagonia R1 Pants
user rating: 5 of 5 (2)
Patagonia
R1 Pants
reviewed Feb 29, 2012
$99
Marmot Lightweight Bottom
user rating: 5 of 5 (1)
Marmot
Lightweight Bottom
reviewed Feb 26, 2011
$28 - $84
Terramar Thermolator II Pant
user rating: 4 of 5 (1)
Terramar
Thermolator II Pant
reviewed Feb 6, 2013
$18
Terramar Thermawool Pant
Terramar
Thermawool Pant
$36 - $39
REI Midweight Space Dye Tights
REI
Midweight Space Dye Tights
$47
Sugoi SubZero Tight
Sugoi
SubZero Tight
$80
Minus33 Tecumseh Midweight 3/4 Bottoms
Minus33
Tecumseh Midweight 3/4 Bottoms
$46 - $59
The North Face Expedition Tight
The North Face
Expedition Tight
$42
L.L.Bean Polartec Power Dry Base Layer, Pants Lightweight
L.L.Bean
Polartec Power Dry Base Layer, Pants Lightweight
$20
L.L.Bean Power Dry Stretch Base Layer, Lightweight Pants
L.L.Bean
Power Dry Stretch Base Layer, Lightweight Pants
$30 - $34
Patagonia Merino 3 Midweight Bottoms
Patagonia
Merino 3 Midweight Bottoms
$69 - $115
SmartWool The Tight II
SmartWool
The Tight II
$47
Patagonia Merino 3 Midweight Boot-Top Bottoms
Patagonia
Merino 3 Midweight Boot-Top Bottoms
$89 - $115
REI Lightweight MTS Polartec Power Dry Bottoms
REI
Lightweight MTS Polartec Power Dry Bottoms
$35
Terramar Filament Silk Pant
Terramar
Filament Silk Pant
$28
Burton Expediton Pant
Burton
Expediton Pant
$70
Patagonia Merino 2 Lightweight Bottoms
Patagonia
Merino 2 Lightweight Bottoms
$49 - $90
Polarmax Quattro Fleece Pant
Polarmax
Quattro Fleece Pant
$30 - $49
Polarmax Tech Silk Pant
Polarmax
Tech Silk Pant
$14 - $19
Hot Chillys Micro-Elite Chamois Bottom
Hot Chillys
Micro-Elite Chamois Bottom
$55
Komperdell BC-Flex Fleece Long Underwear Bottoms
Komperdell
BC-Flex Fleece Long Underwear Bottoms
$59
Ibex Woolies 220 Bottom
Ibex
Woolies 220 Bottom
$95
Helly Hansen HH Dry 3/4 Pant
Helly Hansen
HH Dry 3/4 Pant
$40 - $44
Icebreaker Vertex Leggings
Icebreaker
Vertex Leggings
$99 - $109
Icebreaker Oasis Legless
Icebreaker
Oasis Legless
$80
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