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Stay warm and comfortable on your outdoor adventures with our collection of hiking base layer pants. Designed for optimal insulation and moisture-wicking properties, these pants provide the perfect foundation for your layering system. Crafted from high-quality materials, they offer a snug fit that moves with you, ensuring maximum flexibility and comfort. Whether you're trekking through chilly trails or enjoying a winter hike, our base layer pants will keep you cozy and dry. Gear up for your next adventure with essential performance features that enhance your outdoor experience.
$34.99
Definitely would recommend this Carhartt base layer pant to my friends. ... Happy with my Carhartt waffle base layer, bought the same thing maybe four years ago and loved them, and I still love
$44.99
They fit great and keep me nice and warm working outside in the wind all day. ... I bought these so I may continue playing golf in the colder weather. ... Keep
5
Cynthia
[ My husband said he will never wear anything else since buying these he ’s in love with them!
5
JustinK
[ very nice product here. Keeps me warm in 30 degree weather with gusts, and matches the same style top baselayer well. Overall great buy.
5
EricG
Very comfortable and warm without being too bulky underneath a pair of jeans. Highly recommend!
5
LantzW
Easy to put on great fit and feel
5
Rico 51
I bought these a month ago and absolutely pleased with the quality going back to buy two more and they do keep you warm.
$115.00
Exactly what you expect from smart wool base layer ... If you need a base layer or something lightweight to wear on a chilly/cold night- These are useful and for great
5
Connie
[ My old lady and I have the smart wool top and bottom 250 base layer set. They are exactly what you expect from smart wool. Great quality, the warmth I needed, and pretty useful in most conditions. If you need a base layer or something lightweight to wear on a chilly/cold night- These are useful and for great value.
5
Britt802
[ At first these pants feel sort of itchy but once you 're moving around in them it's very comfortable. I first wore them in 35- 40F under normal hiking pants and was too warm while moving. They do regulate body temp well but I wo n't be wearing these hiking unless it's below 35F. I 'm also not a cold bodied person and I move fast.
5
jjrunning
[ We live in Minnesota, and have pretty cold winters. This baselayer has kept me much warmer than my old baselayers, so far! Great for running, walking or casual use. I plan on using them for a winter camping trip coming up as well.
5
KonaSunsets
[ Bought these as a gift. My daughter said her husband LOVES them. He's had a pair for over 10 years and they are worn out. So a new pair was needed.
5
jackie27
[ I got these as a gift for someone and was impressed by how soft they were. I haven ’ t worn them, but he ’s said they ’ re very warm and not itchy at all. I ’ ll definitely be buying a pair for myself soon!
$125.00
[ These are great and probably my favorite pair of base layer bottoms. ... [ I bought these and the matching top for a hiking trip and LOVE them. ... They also don ’ t look like you ’ re wearing long underwear, so you don ’ t have to wear a layer...
5
cathy
[ I bought these and the matching top for a hiking trip and LOVE them. They are so soft and comfortable and kept me warm without making me sweat. Perfect!
5
Karen
[ Amazingly soft and NOT itchy at all! High quality and fits very comfortably. Can ’ t wait to try it out soon with cold Michigan winter up north!!
5
Lynn
[ Love the quality and softness of these wool undergarments! I got medium top and bottom and they are true to size. I hike alot in the winter in the Smoky Mountains. These garments kept me cozy and warm! Love the mint green color also!!!
5
inaudwetrusr
[ These are great and probably my favorite pair of base layer bottoms. They are cozy, not too tight and breathe nicely. I ’ d like to buy another pair but my size is out of stock.
5
Ralph
[ I am an avid walker and must have my daily jaunt or I will go bonkers. I have hiked in all weather from the cold sub temps of Minnesota to the rainy and windy winters of Texas. Having warm thermals are essential. Searching online reviews, Smartwool keeps popping up. My wife and I bought two sets each of tops and bottoms and she just simply loved them instantly When ever the temp dips she gleefully pulls on her Smartwool NTS and a shell and she is out the doors. The material is just the right thickness and the seams are well hidden. It instant warms the body and as claimed, do not smell after a few uses As for durability we have to wait and see. We have other woolen garments and we can see these products appear to be durable. No regrets buying them but regrettably the color choices are limited due to stocks available.
$125.00
Perfect weight to stay warm in cold weather. ... I love how they keep me warm but do n't make me hot. ... He said the fit was true to size and they kept him warm while snowmobiling and
5
tjflan2
Fit true and worked outstanding as base layer for football game. Very comfortable and breathable.
5
Mountain time
Fit great especially in length. Perfect weight to stay warm in cold weather.
5
Kwhendy
Bought these about a week ago and wear them nearly every day. I love how they keep me warm but do n't make me hot.
5
srgmnh
These really are a step above. Great fabric, great warmth, hold their shape well. Worth every penny.
4
Jdub
Smart wool has always made quality products and these are no different. But… awfully pricey for a pair of long Johns!
$115.00-$125.00
I absolutely love the Smart Wool Thermal merino wool leggings- will be using the set to sleep in for colder hike thrus this fall up north. ... It ’s a great base layer that I can depend
5
Maw maw Z
My legs will not be cold this winter. They are of good quality and very soft and warm.
5
Tara H.
Absolutely love the feel of these thermal pants. I plan to use these on the trail to sleep in on cold nights. It should be comfy and warm. Can ’ t wait.
5
Tara H.
I absolutely love the Smart Wool Thermal merino wool leggings- will be using the set to sleep in for colder hike thrus this fall up north. I can ’ t wait. They are so soft, warm and comfy. The fit was great and I really like the color.
5
Sydroo
Fits true to size. Keeps you warm! Relaxed fit and love the color. Makes snowboarding more enjoyable.
5
Mim1
Used these under sweats in below freezing temperatures in Quebec City sometimes needed snow pants too, other times just the two layers.
$120.00
Great hiking leggings ... Excellent pants with sturdy material where it counts. ... They ’ re snug in a good way, and I never had to adjust or pull them up, even with items in the side
5
Robyn S.
Buttery soft and super breathable essential tights for summer. These are my go to for everyday life. Light enough for the hottest summer days, but with a fine stretchy weave and just enough structure that you don ’ t feel over exposed. Hands down the most comfortable stretchy pants in the lineup!
5
anuh
Sizing is a bit small... I ’ m 5 ’ 3 ” and 100 lbs, and the XS fit perfectly. I normally wear xxs in all things fjallraven. They ’ re snug in a good way, and I never had to adjust or pull them up, even with items in the side pockets. I wore them on a spring hike in the Appalachian mountains that started chilly, got hot by midday, and included rain and wet conditions. They stayed comfortable and dried quickly, even after climbing over wet rocks and navigating muddy trails. The material is breathable, durable, and handled the elements like a champ. If you 're looking for a pair of leggings that can keep up with real outdoor use — these are it.
5
No Name
These are comfortable and durable, easy to maintain and good utility. Can run small, but this pair was true to size
5
YuAn
[ It is a flexible and fashion tight. I love it so much. The pocket is very useful for me. I can put some candy in my pocket. The fabric is strong on knee and butt.
5
Finch
[ The tights that were made for hiking, riding and all else. Great fit, nice stretch and perfect weight. I am not the pocket lover would like to have option to not have, but if you but these you will enjoy.
$175.00
The added warmth is such a nice bonus! ... These leggings are perfect for exploring in! ... They kept me warm on some pretty brutal days. ... Comfortable but still
5
shalomvendetta
Went hiking in the Lake District and discovered my abisko tights were too large. Fortunately, I found a Fjallraven vendor and found these tights, which turned out perfect as I need a bit more insulation. I love the feel of these. They kept me warm on some pretty brutal days. They dry quickly. I am absolutely in love with Fjallraven tights, and these are a new favorite.
5
FjällFox
I think Fjällräven really succeeded it balancing the comfortability of tights with the durability required for trekking in forests. These are a perfect combination of the two- flattering and well fitting tights that hold up to the scuffing and scratching that comes with trekking through a natural environment. They still look brand new after several washes and many many treks. The added warmth is such a nice bonus!
5
Shellbell
[ These are great outdoor/hiking leggings! They are warm and seem durable so far. I live on the Northern California coast where it ’s cold most of the year. These leggings are perfect for exploring in! Love them:)
4
WWECO
[ Love the way these pants fit! I always love the look of Fjallraven pants, but these aren ’ t as warm as I hoped. I ’ ve used them in lower temps( 20- 30 ’s F) and my legs are cold to the touch. I definitely have less expensive rights that keep my legs warmer.
$110.00
The waist is high and seamless and very comfortable. ... Looks great under skirts for winter. ... [ Good fit, snug but very moveable, slightly more so than Intraknit 200, although both are
5
JLKNH
[ Good fit, snug but very moveable, slightly more so than Intraknit 200, although both are awesome. Pair with waterproof( maybe) lightly lined pant for full winter warmth without the bulk. Love the fun pattern to make life more interesting. Highly recommend!
5
Jacketquestion
[ I was skeptical after reading reviews but I really like these tights. The waist is high and seamless and very comfortable. Also doesn ’ t dig in creating muffin top stretchy and warm. Looks great under skirts for winter. Totally recommend. Feels lighter than the coordinating tops. True to size.
Hiking base layer pants are designed to be worn next to the skin, providing a moisture-wicking layer that helps regulate body temperature during outdoor activities. They are essential for maintaining comfort by keeping you dry and warm in varying weather conditions. A good base layer can enhance your overall hiking experience by preventing chafing and allowing for better movement.
Hiking base layer pants are typically made from materials such as merino wool, synthetic fabrics, or blends that offer moisture-wicking properties. Merino wool is known for its natural temperature regulation and odor resistance, while synthetic fabrics are often lightweight and quick-drying. The choice of material can significantly impact comfort and performance during hikes.
When selecting hiking base layer pants, consider the season and climate of your hiking destination. For colder weather, opt for midweight or heavyweight options that provide additional insulation. In warmer conditions, lightweight and breathable fabrics are ideal to keep you cool. Layering is key, so choose pants that can be easily combined with other clothing for optimal comfort.
Key features to consider when choosing hiking base layer pants include moisture-wicking capabilities, breathability, and stretch for mobility. Look for options with flatlock seams to reduce chafing and a snug fit that allows for easy layering. Additionally, consider pants with odor-resistant properties to keep you feeling fresh on longer hikes.
Yes, hiking base layer pants are versatile and can be worn for various outdoor activities such as skiing, snowboarding, or even casual wear. Their moisture-wicking and thermal properties make them suitable for any situation where you need to stay comfortable and dry. Many people also use them for workouts or lounging due to their comfort and flexibility.
Hiking base layer pants are the foundation of a layering system, designed to be worn directly against the skin. They help manage moisture and regulate temperature, making them crucial for comfort. Over the base layer, you can add insulating layers and outer shells depending on the weather, ensuring you stay warm and dry throughout your hike.
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