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Smartwool
Classic Thermal Merino Crew Baselayer - Women's

4.68 out of 5 stars
25 Reviews
$69.00 - $115.00
Up to 40% off
Color:Arctic Green Digi Snow

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Stay 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

What do you think about this product?

Overall Rating

4.5 based on 25 ratings

Review Summary

1 Stars - 1 reviews
2 Stars - 0 reviews
3 Stars - 1 reviews
4 Stars - 2 reviews
5 Stars - 21 reviews

Fits True To Size

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Runs smallTrue to sizeRuns large

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5 out of 5 stars

January 12, 2025

Necessary buy

Familiarity:
I've used it several times
Size Bought:
Small

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.

Beth
5 out of 5 stars

January 5, 2025

Love it, super functional

Familiarity:
I've put it through the wringer
Size Bought:
S

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.

Livedinthisshirt
5 out of 5 stars

January 4, 2025

Warm and cozy

Familiarity:
I've used it several times
Size Bought:
Medium

Perfect for layering

Brigitte S
5 out of 5 stars

December 30, 2024

Warm, soft, and comfortable

Familiarity:
I've used it once or twice and have initial impressions
Size Bought:
Large

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.

Ariana
5 out of 5 stars

December 8, 2024

Perfect fit - size up!

Familiarity:
I've used it once or twice and have initial impressions
Size Bought:
L
Height:
5' 8"
Weight:
140

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.

Katy W
3 out of 5 stars

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.

user image
Sarah J
5 out of 5 stars

November 28, 2024

Comfortable

Familiarity:
I've used it several times
Size Bought:
Large

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.

Elizabeth
5 out of 5 stars

November 20, 2024

Yummy and pretty

Familiarity:
I've used it several times
Size Bought:
m
Height:
5' 5"
Weight:
129

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!

lilawheel l
5 out of 5 stars

November 13, 2024

Did what I needed it to

Familiarity:
I've used it several times

I live in a warm weather area and travelled to ICELAND! I got this baselayer especially for the trip and it definitely came through for me (along with a few other layers)! Warm, soft, comfortable.

CGail
5 out of 5 stars

April 9, 2024

smartwool wins

Familiarity:
I've used it several times
Size Bought:
M

love these - i've tried other baselayers but they get holey and stretch out and don't last - my smartwool shirts and heavier knits have lasted for years, happy to have a couple new ones - love the new purple too

Andrea S

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