Base Layer Bottoms

Brand

66°North
686
Arc'teryx
Armada
Avalanche Wear
Backcountry.com
Baffin
Bergans
Brooks-Range
Burton

User

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

Helly Hansen LIFA Merino Pant

rated 4.5 of 5 stars An excellent base layer choice from a company that understands cold and wet weather. The HH LIFA Merino 2-layer construction keeps you warm and dry in all kinds of conditions, and feels great when wearing it. Watch out for the “athletic” fit when purchasing, but if you get the right fit this base layer will keep you comfortable in rain, sleet, and snow well below freezing. Note that this is a companion review with the Helly Hansen LIFA Merino 1/2 Zip top.Product Description Helly Hansen (HH)… Full review

Fjallraven Bergtagen Longjohns

rated 5 of 5 stars The Fjallraven Bergtagen Long Johns is a base layer pant that utilizes wool in three different weaves to maximize heat retention in key areas (butt, groin) and breathability in others (thighs, calves). It’s a total home run of execution and since I received this base layer for testing I have worn nothing else. It’s exceptionally well tailored, durable, doesn’t stink on multi-day trips, and you’ll have no fear around a fire. The only possible negatives are more inherent to wool, than this… Full review

Ridge Merino Inversion Heavyweight Bottoms

rated 4 of 5 stars A warm and comfortable pair of baselayer pants that work particularly well below freezing temps, but they do have sizing limitations. Fit and Comfort: At 6’2” and 190 lbs. (1.88m and 86.2 kg), I typically wear pants with a 31” or 32” waist and a 34” inseam. I tested a men’s medium size, due to its accurate waist size, realizing that the length might be slightly shorter than desired, according to the manufacturer’s sizing chart. In fact, I’d have to jump up two sizes to a men’s… Full review

Avalanche Wear Mogul Pant

rated 1 of 5 stars These used to be my go-to pants. They were fantastic until they changed the fabric years ago and made them in China. I just bought these pants after years of refusing to buy them for years because of the terrible pilling and their latest product is worse than ever. They pilled immediately. I bought Athletica Polartec at the same time and there is no pilling. I am so disappointed because 15 years ago when they were made in Canada they were fantastic. Why don't companies listen to their consumer reviews? Full review

Coldpruf Platinum II Pant

rated 5 of 5 stars ColdPruf has better quality materials (not cotton) than the old stuff I have, and the fit is much better. There are excellent sizing charts and sizes for tall people, like myself. The fit is great. I could comfortably play sports or other activities in the Platinum II without any range of motion restrictions. It is tight enough fitting for a base layer (the modern name for long underwear), but not too tight. Recommend for active people in cold weather. As a member of another website, I get products… 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

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

Patagonia Men's Capilene Lightweight Bottoms

rated 4.5 of 5 stars Go-to sleeping bottom. These are my go-to sleeping bottoms.  They're light enough to wear in the summer, provide a good base layer for the winter, and are more comfortable than laying directly on nylon or whatever. I've never gotten them wet but assume they would dry fast. They fit well, and have a functional fly. One extra chilly day I hiked most of the morning in them before I noticed the micro grid pattern on the inside was causing chafing. Wouldn't recommend putting miles in with these. Great… Full review

Top-Rated Base Layer Bottoms

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66°North Vik Tights
$120
686 Therma Base Full Length
Arc'teryx Phase AR Bottom
$12 - $90
Arc'teryx Phase SL Bottom
$75 - $185
Arc'teryx Phase SV Boot Cut
$69 MSRP
Arc'teryx Phase SV Bottom
$79
Arc'teryx Phase SV CZ Bottom
$60
Arc'teryx Rho AR Boot Cut
$79
Arc'teryx Rho AR Bottom
$125
Arc'teryx Rho LT Boot Cut
$79
Arc'teryx Rho LT Bottom
$89
Arc'teryx Satoro AR Bottom
$109
Arc'teryx Stryka Hoodie
Armada Contra Merino Pant
user rating: 5 of 5 (1)
Avalanche Wear Mogul Fleece Legging
$50 MSRP
user rating: 3 of 5 (4)
Avalanche Wear Mogul Pant
$50 MSRP
Backcountry.com Backcountry Lightweight 3/4
Baffin Base Layer Bottom
Bergans Soleie Tights
Brooks-Range BR Suit
Burton Lightweight Pant
$35 MSRP
Burton Midweight Pant
$35
Burton Midweight Shant
$40 MSRP
Cabela's E.C.W.C.S. Medium-Weight Bottom
$36
Cabela's E.C.W.C.S. Polar-Weight Tight
$42
Cabela's E.C.W.C.S. Power Dry Thermal Zone Tight
 
Cabela's MTP Polar-Weight Bottom
Coldpruf Extreme Performance Pant
$25
user rating: 5 of 5 (1)
Coldpruf Platinum II Pant
$33 MSRP
user rating: 5 of 5 (1)
Coldpruf Platinum Pants
Columbia Arctic Trek Tight
$64
Columbia Baselayer Midweight Tight
$55 MSRP
Columbia Heavyweight II Baselayer Tight
$48
Columbia Midweight Stretch Baselayer Tight
$38 - $55
Columbia PHG Camo Baselayer Midweight Tight
Craft Pro Dri Long Underpant
$42
DaKine Astra Pant
DaKine Quick Draw Pant
DaKine Talon Bottom
 
user rating: 4.5 of 5 (1)
Eddie Bauer First Ascent Midweight Baselayer Pants
$45 MSRP
EMS Heavyweight Tights
EMS Midweight Baselayer Pant
EMS Techwick Heavyweight Extreme Tight
EMS Techwick Heavyweight Tight
$65 MSRP
EMS Techwick Lightweight Tights
$30 MSRP
EMS Techwick Midweight Tights
$35 MSRP
EMS Techwick Silkweight Tight
 
user rating: 4.5 of 5 (1)
ExOfficio Give-N-Go Skivvy Pant
discontinued
user rating: 5 of 5 (1)
Fjallraven Bergtagen Longjohns
$140 MSRP
Flylow Gear Shreggings
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