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The breathable Smartwool Women's Midweight Zip Top helps your body regulate its temperature by both insulating and by moving moisture away from your skin. And with the zippered ventilation option, you'll find that the top's usefulness spans the seasons and a wide range of activities.

  • Soft merino feels great against the skin, insulates in cold weather, wicks moisture, and naturally inhibits odor
  • Shoulder panels eliminate top shoulder seams for comfort under backpack straps
  • Flatlock seams go easy on your skin
  • Back body seam wraps to front for a body-enhancing fit
  • UPF 50 protection blocks the sun before it can fry your skin

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SmartWool Midweight Zip Top - Women's

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Here's what others have to say...



Wore this every other day while sightseeing in Peru for a few weeks. Nice and light. It wicks well and keeps the stink off longer than synthetics and cottons

5 5

Best baselayer for snowboarding!

  • Familiarity: I've used it several times
  • Fit: True to size

I ordered this top and the IceBreaker Bodyfit 260 ( to compare.

The smartwool was the winner hands down. The fabric was softer and the fit was better - longer in the torso to prevent it from hiking up while moving.

After wearing it snowboarding I'm even more in love. It kept me warm and wicked moisture away. For size reference I'm 5'3 and 135lb. The size S fit like a glove. My only minor gripe is that this shirt has no thumbholes.

5 5

Comfy and warm

  • Familiarity: I've used it once or twice and have initial impressions
  • Fit: True to size

I got this to replace a heavyweight Icebreaker half-zip that I left somewhere along the Baja coast. While this isn't nearly as warm (it is a much finer, lighter garment) it is much more comfortable and great as a first layer. Even though it wasn't as heavy as I'd hoped, I love wearing it and am thrilled to have it! I ordered the large (I'm 5'11", 140 lbs) and the body and sleeves fit perfectly. I have long arms and it is unusual to find something that fits so well. I highly recommend this top. SmartWool is the bomb!

5 5

Fantastic Garment

  • Familiarity: I've put it through the wringer
  • Fit: True to size

This quarter-zip has become one of my new favorite layers for outdoor cold-weather activities like skiing and snowshoeing. It's comfortable, soft, not itchy at all. Really warm. The Lg. fits me just right (I'm 5'6", 145 lbs., and would normally order a size Med. top); the Med. fits my daughter just right (5'9", 145 lbs.) but was tighter than I would have wanted for myself. Washes well. Designed nicely enough that it would work fine for casual apres-ski wear too (i.e. doesn't look like long underwear).

5 5

Love the fit

  • Familiarity: I've used it once or twice and have initial impressions
  • Fit: True to size

So far, so good! I am really diggin this smartwool midweight. It keeps me warm, and it fits me really really well. I was comparing it to the Patagonia Cap 3 midweight, and the smartwool fit my figure WAY better (the SW is a little slimmer and longer than the PAT). Can't wait to take this camping!

5 5

Awesome sweater!

  • Familiarity: I've used it several times

This smart wool sweater just got its trial run in the middle of the Mt. Shasta Forest. It kept me warm and the merino wool so soft! -and comfortable. Easy to layer, easy to pack.
I have also been wearing it over my clothes during the day: the zipper top makes for a nice style.

5 5


Used it on a warm ski day under a light jacket and it was not too hot, not too cool. I am waiting for 50 degree weather to give it a try on the road bike. I am 5'-3" and 120lbs, fits perfect. The color is a little off, more turquoise than blue, but it doesn't matter!

Responded on

I am 5'4" and 130lb. A small was too small for me, especially because I think it would have shrunk in the wash. I opted to return the small for a medium, especially because I want a little extra room so that I can wear tshirts under it.

This is a wicked warm and soft shirt! Can't wait to get the right size and test it out.

5 5

Favorite shirt

  • Gender: Female
  • Familiarity: I've put it through the wringer

I've had this shirt for several years and it's still probably my favorite winter shirt. It is very versatile and I use it for nearly everything; skiing, hiking, lounging and casual day-wear. It is a great layering piece and provides a lot of warmth for it's size.

5 5

Soft & Warm Midweight

This shirt is an amazing mid weight, unmatched by others out there. It is really warm and the moisture management is superb. Especially because of the half zip. Its nice and soft. I use this as my layering mid weight and solo. It is one of my favorite smartwool shirts.