How to Choose Base Layers
Smartwool Intraknit Thermal Merino Base Layer Bottoms - Women's
$130.00
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Built to flex and follow you like a shadow, the women's Smartwool Intraknit Thermal Merino base layer bottoms are 3D knit for insulation, ventilation and flexibility for your high-intensity workouts.
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- Made with Merino Sport yarn to offer the power of merino paired with the durability and fast dry times of polyester—perfect for skiing, running and high-intensity training
- Seamlessly knit mesh ventilation is designed to keep you dry and comfortable
- Featuring Intraknitâ„¢ technology offers insulation, articulation and ventilation and are designed to amplify movement and comfort during high-intensity activities
- Smartwool slim fit is intended to follow the contours of the body
- Fitted with a mid-rise waist
- Size medium inseam is 31 in. (79 cm)
Imported.
View the Smartwool Intraknit Product LineView all Smartwool Women's Base Layer Bottoms| Best Use | Multisport |
|---|---|
| Fabric | 52% merino wool/45% polyester/2% elastane/1% polyamide |
| Moisture Wicking | Yes |
| Underwear Weight | Lightweight |
| Inseam (in.) | 31 inches |
| Gender | Women's |
| Sustainability | Contains ZQ merino wool |
Smartwool Clothing - Women's
| XS | S | M | L | XL | 1X | 2X | 3X | 4X | |
|---|---|---|---|---|---|---|---|---|---|
| Numerical Size | 0 - 2 | 4 - 6 | 8 - 10 | 12 - 14 | 16 - 18 | 16 - 18 | 20 - 22 | 24 - 26 | 28 - 30 |
| Chest | 32 - 33 | 34 - 35 | 36 - 38 | 39 - 40 | 41-42 | 43 - 45 | 47 - 49 | 51 - 53 | 55 - 57 |
| Sleeve Length | 27 - 28 | 28 - 29 | 29 - 30 | 30 - 31 | 31 - 32 | 31 | 31 | 32 | 33 |
| Waist | 24 - 25 | 26 - 27 | 28 - 30 | 31 - 32 | 33 - 34 | 39 - 41 | 43 - 46 | 47 - 50 | 52 - 55 |
| Hip | 35 - 36 | 37 - 38 | 39 - 40 | 41 - 42 | 43 - 44 | 45 - 47 | 49 - 51 | 53 - 55 | 57 - 59 |
| Inseam | 29 - 30 | 30 - 31 | 31 - 32 | 32 - 33 | 33 - 34 | 30 - 32 | 30 - 32 | 30 - 32 | 30 - 32 |
Sizing Notes
Measurements are stated in inches.
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Most Helpful Favorable Review
Warm, Breathable & Soft!
Megs1 year ago
I was back & forth between these & the other cheaper Smartwool base layers. Eventually I went into the store to try both. After reading all the reviews I thought for sure I was going to get the other base layer but it turned out the Intraknit was WAY softer. I am a bit of a oversensory human when it comes to itchy wool on my skin & these do not itch at all. I wear them outside in the Winter for 12+ hours on end & have worn them in negative temperatures. I am usually a Small all around but ended up getting a Small top & Medium bottoms to accommodate for my long legs + a little extra comfort while working outside. Very breathable, I hardly need to wash them! HIGHLY recommend.
Megs
Grand Rapids, MI
7 people found this review helpful
Most Helpful Critical Review
Tight!
Bluejay2 years ago
I normally wear medium and recently ordered a different style of long underwear from REI in M and they were fine. But these (Smartwool Women's Intraknit Thermal Merino) feel like a size 4, with a ton of elastic, which I guess is supposed to make them wearable. I can get them on, but I would not be comfortable wearing them.
Some people might not mind. Or you could try a size up.
I'm hoping I can return them.
Bluejay
CA
44 people found this review helpful
Customer Images
Megs
Grand Rapids, MI
Warm, Breathable & Soft!
1 year ago
I was back & forth between these & the other cheaper Smartwool base layers. Eventually I went into the store to try both. After reading all the reviews I thought for sure I was going to get the other base layer but it turned out the Intraknit was WAY softer. I am a bit of a oversensory human when it comes to itchy wool on my skin & these do not itch at all. I wear them outside in the Winter for 12+ hours on end & have worn them in negative temperatures. I am usually a Small all around but ended up getting a Small top & Medium bottoms to accommodate for my long legs + a little extra comfort while working outside. Very breathable, I hardly need to wash them! HIGHLY recommend.
Age:25–34
Weight:100–125 lbs.
Height:5'5"
Yes , I recommend this product
Kara
San Jose, CA
warm, comfortable, no vanity sizing
6 months ago
I got these bottoms and the matching shirt on the recommendation of my brother who swears by Smartwool. For context, my brother is the type to go hike up a mountain alone and sleep up there just to go backcountry skiing in the most desolate of places. My father lives in a colder area so finds the Smartwool products useful for outdoor activities also. I am a creature of comfort. Anyway, I felt very comfortable in the shirt and matching bottoms. I would say that this brand does not follow the vanity sizing of many women’s brands - I had to size up for tops and bottoms. (I am leaving the same review for both the top and the bottom.)
Age:25–34
Weight:125–150 lbs.
Height:5'6"
Yes , I recommend this product
Bluejay
California
Tight!
2 years ago
I normally wear medium and recently ordered a different style of long underwear from REI in M and they were fine. But these (Smartwool Women's Intraknit Thermal Merino) feel like a size 4, with a ton of elastic, which I guess is supposed to make them wearable. I can get them on, but I would not be comfortable wearing them. Some people might not mind. Or you could try a size up. I'm hoping I can return them.
Age:55–64
No, I do not recommend this product
ski_all_day
Horrible fit
2 years ago
The fit of these is extremely uncomfortable. They are surprisingly low waisted and tight - not what you would want for outdoor activities.
Age:25–34
No, I do not recommend this product
Chel
Go-to snow sport underwear
6 months ago
Favorite thermal leggings. Lasted 4 years before becoming thread bare in seat.
Yes , I recommend this product
NHhikeski
NH
My dream base layer pants
6 months ago
The greatest pants I own. I'm wearing them right now (in black) and came back to buy a second pair. Warm and comfy. Perfect base layer for skiing. I would wear these all winter long if I could. I did have to size up but I tried them on in store so no worries. I'm 5'8", 120 lb and a medium is great. So many base layer pants are too short, baggy in weird places, or just a funny fit on me but these are like a glove. I tried on about 8 different other models in multiple stores before finding these, so you know I'm picky.
Age:45–54
Weight:100–125 lbs.
Height:5'8"
Yes , I recommend this product
nobadweather
Minnesota
cozy and fun to wear
7 months ago
…or so says my wife. Bought a small for her on reading other reviews (she’s usually and XS) and she’s very happy and warm - both out in the weather and at home.
Age:45–54
Yes , I recommend this product
klabba
DC
Very cute, but itchy
2 years ago
I really like the red color and design - it looks great! But so itchy, I can't imagine hiking or skiing in these.
Age:35–44
Weight:125–150 lbs.
Height:5'5"
No, I do not recommend this product
Pam
Hershey, PA
Worth every penny!
6 months ago
Unbelievably warm, yet light weight. Perfect under my snowboarding gear. Not too hot, not cold at all. Worth EVERY PENNY!
Age:45–54
Weight:125–150 lbs.
Height:5'7"
Yes , I recommend this product
Becky C
Rhinelander, WI
Comfy and warm
2 years ago
I have never worn this type leggings before as I'm a jeans type gal. But listening to other talk and watching what others wear at the local ski resorts i thought i would get it a try and see how it works out! I love it they are so comfy and warm enough for our skiing outing only thing i miss it pockets!!
Age:35–44
Weight:200–225 lbs.
Height:5'5"
Yes , I recommend this product
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