Classic Thermal Merino Crew Baselayer - Women's
Out of Stock
Don't worry though, we have a lot more Women's Midweight Long Underwear Tops in stock than that.
Shop Similar ProductsStay warm on any adventure with the Smartwool Merino 250 Baselayer—soft, cozy, and durable.
The updated Smartwool Classic Thermal Merino Crew Baselayer is more comfortable than ever. Adjusted shoulder panels and the addition of flatlock seams help minimize chafing, taking our comfort to new heights. Heavier merino wool knit provides significant warmth, ventilation, and odor resistance for a cozy, pampered feel while we brave the coldest winter chills.
Details
- Seriously warm baselayer top ideal for cold-weather conditions
- Merino wool is naturally odor-resistant for all-day freshness
- Shoulder panels reduce seams for added comfort
- Flatlock seams minimize chafing and hot spots on long days
- Raglan sleeves add mobility to our motions on the trail
- Slim fit is snug and easy to layer
- Item #SWLZ8BY
- Material
- 100% merino wool
- Insulation Weight
- 250gsm
- Fit
- slim
- Center Back Length
- [small] 24in
- Style
- crew
- Anti-Odor
- natural attribute of merino wool
- Claimed Weight
- 7oz
- Manufacturer Warranty
- 2 years
Reviews
Q&A
Overall Rating
4.5 based on 27 ratings
Review Summary
Fits True To Size
Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.Customer Images
View
Selecting an option will reload the available reviews on the pageFebruary 14, 2025
Warm warm and cozy
- Familiarity:
- I've used it several times
I love this base layer! It’s a nice medium weight. It feels like you have heavier protection than my lighter weight ones. I layer it with other clothing for skiing in temps in the teens in WA State and it keeps me warmer than some of my other lighter weight wool base layers. I also wear it for winter hiking with an added top and once again I’m warm. It’s also one of my go to tops for casual everyday wear since the design that I got is dressy enough to do so. I usually wear a XS but sized up to a small and it fits perfect.
Originally reviewed on Backcountry.com
February 6, 2025
Gotta love merino
- Familiarity:
- I've used it several times
Love!! Fun color and great functionality! Wore in 15 degree weather with a mid weight layer and jacket and it kept me warm while skiing.
Originally reviewed on Backcountry.com
January 12, 2025
Necessary buy
- Familiarity:
- I've used it several times
I purchased a top and bottom base layer for northern winter sports. The fit is perfect, the material is soft and comfortable, and the quality is worth the price.
Originally reviewed on Backcountry.com
January 5, 2025
Love it, super functional
- Familiarity:
- I've put it through the wringer
Just used it for the last month, including a trip Maine hiking, snowshoeing, dogsledding, sledding etc. I love the fit that it isn’t baggy, didn’t make me sweat when layered, and doesn’t smell after multiple days of activity - it became my go-to base layer in Maine. I really enjoy the ease of care with washing and drying and that it doesn’t “look” like a base layer. I can wear it with jeans around town and it’s really cute. It fits true to size with a bit of stretch to flatter but not be tight. I’m 5’3”, pear shaped/athletic and 130 lbs.
Originally reviewed on Backcountry.com
January 4, 2025
Warm and cozy
- Familiarity:
- I've used it several times
Perfect for layering
Originally reviewed on Backcountry.com
December 30, 2024
Warm, soft, and comfortable
- Familiarity:
- I've used it once or twice and have initial impressions
I got this to go with a pair of smartwool base layer bottoms. The top is very cozy and warm. Very happy with my purchase.
Originally reviewed on Backcountry.com
December 8, 2024
Perfect fit - size up!
- Familiarity:
- I've used it once or twice and have initial impressions
I am a 38C and usually wear an athletic bra that flattens my chest. I am usually a size M and sometimes a L. I sized up to a L and am happy with the fit. It's extra long in sleeves and length, but not baggy.
Originally reviewed on Backcountry.com
December 3, 2024
Color is off
I was excited to see the yellow color (marmalade heather), so even though I have lots of long underwear I bought this also. When I received it though the color is not yellow at all. It is solidly orange. So I am going to be returning the top along with the matching bottoms.
Originally reviewed on Backcountry.com
November 28, 2024
Comfortable
- Familiarity:
- I've used it several times
I’m on the heavier side (5’3 173) I ordered a large and it fits great. Warm but not suffocating hot. I plan to buy more. I wear it almost daily for bed.
Originally reviewed on Backcountry.com
November 20, 2024
Yummy and pretty
- Familiarity:
- I've used it several times
This is a little thicker than my thinner, finer gauged merino baselayers from other famous brands. All have lasted for years, indeed I'm wearing one now, though this past summer moths ate pinholes and larger in some, despite camphor in the closets! It's not those other brands' fault, and I keep them mended, too. But you can kind of see the mends and either wear them under other stuff or for gardening. So, this new baselayer from Smartwool is a delight! Yummy thickness, not too thick, and refreshingly clean and new. I don't need to hide it under stuff but I can if I want to on a cold day. Haven't washed it yet. Must try harder to fight moths this spring!
Originally reviewed on Backcountry.com