
Description
Smartwool updated the fit of their Women's Classic Thermal Merino Base Layer 1/4 Zip to improve functionality while also enhancing aesthetics. As one of the heaviest base layer tops and one of their best base layers for cold weather, this garment uses 100% responsibly sourced Merino wool, shoulder panels, and a flatlock seam construction to help minimize chafing as well as keep you comfortable and temperature regulated as you enjoy high-intensity skiing, hiking, running, and more.
- Slim Fit
- 100% Merino wool fabric made with an interlock knit
- Enhanced comfort, breathability, thermoregulation, and odor resistance
- Fit updated to improve functionality while enhancing aesthetics
- Back body seam wraps to front for body-enhancing fit
- Crew neck with raglan sleeves
- Flatlock seam construction designed to minimize chafing
- 8" (20 cm) center front zip with semi-locking slider
- Knit in China: 100% Merino Wool
- Garment Weight: 236 g (8.32 oz)
Product Reviews
Review Snapshot
by PowerReviews
Most Liked Positive Review
At least this one thing is still 100% wool
Recently purchased a 4th, 250ZipT. LUV them!! My first one is 9 years old, and gets worn constantly, with no signs of wear. Washes great, and doesn't need to be washed often as it never smells bad. But I'd like to comment that I'm disappointed in the Smartwool company overall, because all other ...
Most Liked Negative Review
Used to love this garment
I have purchased one of these tnecks each of the last 6 years. They keep getting smaller and smaller. The one I bought this year is likely my last since it barely accommodates me. Good thing that they are high quality since the 6 I have will likely last a very long time. This is my go to base...
Reviewed by 1097 customers
My go to in between layer
This is going to be my go to in between layer on my upcoming 6 week trip. It is very comfortable and stretchy to easily take it on and off without messing up my hair! Warm, yet breathable, goes with anything and layers well because it is not bulky like a sweater or sweatshirt.

Official Response by Smartwool, a division of VF Outdoor, LLC
We believe they are the best travel companions as well. Thank you for the kind review!
Love this product, and the pattern is awesome!
I'm a ski instructor, and we are out there no matter the weather, so having good base layers to keep me warm is a must!

Official Response by Smartwool, a division of VF Outdoor, LLC
We're thrilled to hear it received your professional approval. Thank you for the kind review!
Love it
Anything from work to casual
Recommed!
Love this shirt. Bought it for bicycling. Very happy with the fit for XS. It's flattering without being too snug.
Great for warmth and style
I am cold natured and bought this product based on a friend's recommendation. The base layer 1/4 zip does not disappoint. It is comfortable and warm.
Recommend to a friend
Comfort and fit. Stay warm
There's nothing like a smart wool pullover!!
Not sure why reviews are requested just after a purchase but… I bought this to "replace"my favorite 1/4 zip that I've had for 13 years. Love the fit, warmth on cold days, how it's cool on warmer days, light weight for backpacking & how quickly it dries. The last pullover was with me on 58 Colorado 14ers, over 500 miles through the Dolomites and Carnic Alps, over 200 ski days, numerous nights as my PJs for camping, & around town. I remember thinking it was a bit pricey 😂 but clearly worth the money. If you spend a lot of time outdoors & you don't have a wool set, you're missing out. They're life changing!
I'm infatuated with this top!
This is so comfortable for hiking, and it looks great! Washes well, too. Will order again in different colors!
Smart wool soft
Verified Buyer
Comments about G75-Twilight Blue Heather / XL
Nice collar, beautiful color, lightly warm