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❄️ Elevate your cold-weather game with warmth that moves as fast as you do!
Smartwool Women's Classic Thermal Merino Base Layer Bottoms feature a slim, ankle-length fit crafted from midweight 100% Merino wool. Designed for cold-weather activities, they offer superior warmth, moisture-wicking, and breathability with flatlock seams to prevent chafing. Made sustainably in the USA, these leggings combine performance and comfort for outdoor fitness enthusiasts.



























| ASIN | B07N45Z23F |
| Age Range Description | Adult |
| Apparel Closure Orientation | Front |
| Apparel Closure Type | Pull On |
| Apparel Fabric Weight Class | Medium Weight |
| Apparel Occasion and Lifestyle | Outdoor Fitness |
| Best Sellers Rank | #95,015 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #27 in Women's Athletic Base Layers #10,652 in Women's Running Clothing |
| Brand Name | Smartwool |
| Care instructions | Machine Wash |
| Closure type | Pull On |
| Color | Black |
| Customer Reviews | 4.5 out of 5 stars 823 Reviews |
| Fabric Stretchability | Non-stretchable |
| Fabric Type | 100% Wool |
| Fabric type | 100% Wool |
| Fit Type | Slim |
| Front Pleat Type | Flat Front |
| Front Pocket Count | 1 |
| Global Trade Identification Number | 00192361511087 |
| Import Designation | Made in the USA |
| Inseam Length | 30 inches |
| Item Length Description | Ankle Length |
| Item Type Name | Women's Merino 250 Baselayer Bottom |
| Item Weight | 3.52 ounces |
| Leg Style | Skinny |
| Manufacturer | Smartwool |
| Manufacturer Part Number | SW019242001-XL |
| Material Type | Wool |
| Model Name | Merino 250 Baselayer Bottom |
| Number Of Pockets | 5 |
| Occasion Type | construction |
| Origin | Made in the USA |
| Pants Form Type | Leggings |
| Pattern | Solid |
| Pattern Style | Solid |
| Pocket Description | Slant Pocket |
| Product Care Instructions | Machine Wash |
| Rise Style | Mid Rise - Sits at or just below Belly Button |
| Sleeve Length Description | Sleeveless |
| Sport Type | Running |
| Style Name | Merino 250 Base Layer Bottoms |
| Style Number | Smartwool |
| UPC | 192361511087 |
| Unit Count | 1 Count |
| character | Sports |
O**S
Ample room for my larger figure, great cold-weather gear
These leggings are wonderful. They are really comfortable and roomy enough for my larger size. (I am 5'6-ish, and I wear XXL or 16-18 clothes.) I'm an hour-glass figure, so I worried that these leggings would be too small in the derriere, as many women's cuts tend to be. But they went on easily, and they fit in that area without giving me a wedgy and without me having to constantly pull them up over my rump. They are not as bulky as I thought they would be - I can still fit in my jeans without them being too tight. And the fit is just right - it's not like I'm forcing myself into them, so they are easy up/down for things like trips to the ladies room. These leggings kept me nice and warm in the 40-50-degree weather, with just jeans on top; and they added an extra dry layer in rainy weather, with my rain pants. They kept me toasty in the 20-40-degree weather when I had on ski pants.
D**I
Nice feeling on skin
Great feeling nice on the skin not itching the skin . I wore under jeans fit nice while traveling in Norway pet e very warm!
A**M
I'd give them 10 stars if I could!
These long undies are AMAZING. I live in a very cold climate, and I've bought a lot of base layers over the years -- silk, cotton, poly, tech fabrics -- mostly because they were cheaper. Finally, this year, I decided to bite the bullet and try the expensive stuff (mostly due to the free returns option). These have turned out to be so worth it, and my husband is happy that in our current winter weather -- in double digits below zero -- I'm now willing to go outside, because I'm WARM! Even better, these feel like I'm wearing the snuggliest pajamas. I'm looking forward to more cold days just for the opportunity to wear them. Oh, and I've found that if I machine wash them on gentle and then hang them to dry overnight, I can wear them for multiple days in a row. I haven't had any shrinkage of them yet, either. I'll be watching for sales to try to get another set.
C**U
Dependable Smartwool Quality
Soft, quality Merino wool that's worth the price. Wouldn't recommend to wear alone as leggings, yet fabric is thick enough to provide true warmth. Really well made with a gusseted crotch and a wide waistband for comfort. At 5'8" I appreciate the generous length. Size chart is accurate. I'm typically a medium but since I'll be wearing these around the house and as pajamas rather than layering, I opted for an overall looser fit in a size large.
C**D
Nice quality
Decently squat proof (more than the classic/150 style) if you're thinking of wearing these on their own and not as a base layer. I'm 5'2", 115lbs, 0/25 in jeans and both an xsmall and small fit well.
D**Y
Super warm when cold and comfortable no matter what
I live SmartWool to sleep in when it’s cold. It makes it easier to get up and saunter through an ice cold house before work. I like this pair of Smartwool Leggings because they are 100% Merino wool and the two-tone design is fun. Comfortable and stylish for being around the house.
R**D
My favorite leggings
Smart wool leggings are the only ones I wear for layering and under dresses and casual house days. So comfy and warm.
K**N
Very warm base layer
These fit really well under jeans. They provide enough insulation to protect against winter winds. They run just a little short in the rise & a little small through the hips. I wear a size 31 x 32 Levi’s jeans - the large fits me comfortably. I’m 5’09” & weigh 150 lbs.
D**.
Excelente calidad!
Llego más pronto de lo esperado, excelente calidad. 100% Merino. Lo recomiendo ampliamente
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