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Details

  • Merino wool helps maintain comfort whether the climate is warm, cold or in-between
  • 8 in. front zipper ventilates on demand; raised collar keeps your neck warm in the cold
  • Shoulder panels eliminate top shoulder seams, reduce chafing and optimize comfort under pack straps
  • Rear body seams wrap around to front to enhance fit, and sculpted side panels also enhance fit
  • Flatlock stitching eliminates abrasion, increases comfort and enhances fit by reducing bulky seams
  • With a UPF 50+ rating, fabric provides excellent protection against harmful ultraviolet rays

Imported.

View all Smartwool Women's Long Underwear Tops

REI membership

Specs

Best Use Multisport
Shirt Style Zip-front
Fabric Merino wool
Sun-Protective Fabric Yes
UPF Rating 50
Moisture Wicking Yes
Underwear Weight Midweight
Sleeve Length Long Sleeve
Gender Women's

Size chart

Rated 5 out of 5 by from Warm, form-fitting, light-weight I've only worn this shirt a couple of times, but I have been very impressed. The first time I wore it snowshoeing in 0 degree weather. I usually get pretty hot once I've started moving, so I didn't want anything too heavy. I had this on over a tank top with my winter coat, and it was perfect. I never felt too hot or too cold, but I could tell that it was keeping my body heat in. It's warmer than what you would expect for something of it's thickness. They also did a nice job with fabric darts on the sides (you can't really see it in this picture...looks almost like it was photoshopped out) that's very becoming.
Date published: 2016-02-06
Rated 5 out of 5 by from LOVE, LOVE, LOVE these tops!! I have 5 of these tops in different colors and styles. I wear them for work and for play. I initially bought them in a size too big because they fit snug when you first put them on, which made me think I needed the larger size. However, once I had them on for a short while, the fit relaxed a bit, making the larger size too large. This is the only downside to these tops, but I didn't think it was important enough to reduce my rating from 5 stars to 4. Outside of that small issue, these are the most practical and versatile tops I've ever owned.
Date published: 2013-12-03
Rated 4 out of 5 by from doesn't fit as well as last year's model I have this top in last year's and the previous year's colors and LOVE them. Both older tops fit much better than the new one though. This year the sleeves and torso are much longer (my arms haven't grown), but the shoulders are tight in the armpits. The new fit is best for women who don't have shoulder muscles. If you have muscles, look for a used top from last year. I love most of my Smartwool clothing and will keep this top, unless the armpit digging drives me too crazy.
Date published: 2013-01-02
Rated 5 out of 5 by from I love Smartwool clothes! I've had this top and bottoms for a good long time - 5 yrs or so. Expensive, but worth the price due to quality and durability. Keeps you super warm, but also breaths well and wicks the moisture. I wear this underneath when I'm snowboarding, and it's great at keeping me warm and wicking away sweat! I also wear this at high altitudes when I need the extra layer for warmth. It's starting to get some holes, and I'm sad I have to get another top and bottom, because of the steep price, but I just think, another pair will last me just as long. Love this brand!
Date published: 2012-12-26
Rated 4 out of 5 by from Durable and Warm SmartWool brand is a little on the pricey side, but it wears great (spread out the cost over a number of years of wear), and is really comfortable. I have used SmartWool both in daily use (it's part of my go-to layering routine for varying cold weather temps in TX), and camping (great and lightweight/packable on hiking trips). The midweight gets itchy/uncomfortable to wear without an under-layer in temps above 40 degrees (but this is common for all wool materials with me). I love the zip-top option, because I don't always like something around my neck, but it offers a little extra protection when needed. The zipper and zipper pull are also of good quality and not too bulky.
Date published: 2014-02-06
Rated 4 out of 5 by from Pretty darn great I really like this pull-over and can wear it to do almost anything. I bought the black one and it's in a size small. I'm approximately 5'11" and 140 pounds and the Small fit me perfectly. I usually wear larger sizes in other clothing but Smart Wool tops seem to run bigger than other brands. I like wearing this either under a down jacket or just wear it over a tank top depending on the weather. I haven't soaked this product in water yet to see if it dries quickly so I'm not sure about this particular feature yet. It's not super "breathable" but I think it's perfect for the way I use it.
Date published: 2013-09-13
Rated 4 out of 5 by from Very nice but too itchy for me I got this as a 2nd base layer to wear under a jacket or alone. I loved it because it wasn't too thick. I have Smartwool socks and love them so I thought this would work but it was too itchy for me after about 10 minutes I had to take it off and reluctantly return it. Too itchy!!
Date published: 2013-03-21
Rated 4 out of 5 by from Nice weight, but wore out the elbows I looove the weight and feel of this zip up--it's so comfortable and the perfect warmth for cool spring and fall days. It breathes well and can be worn for days without smelling. But (probably because I work a lame desk job and have my elbows on a desk all day, and I was wearing it in my over-air conditioned office) I wore holes in both the elbows in less than a year. I think it would have held up better if I had worn it to go hiking and biking and camping than to work...
Date published: 2015-04-03
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What is the difference between this and the NTS 250 top?

Asked by: Amuz
​The only difference between the Midweight Long-Sleeve Zip-T Top and the NTS 250 top is the zipper. Both are made with a midweight merino wool.
Answered by: REIservice
Date published: 2017-02-12
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Back to top

Please select a color/size.

Size chart

Reviews

Rated 5 out of 5 by from Warm, form-fitting, light-weight I've only worn this shirt a couple of times, but I have been very impressed. The first time I wore it snowshoeing in 0 degree weather. I usually get pretty hot once I've started moving, so I didn't want anything too heavy. I had this on over a tank top with my winter coat, and it was perfect. I never felt too hot or too cold, but I could tell that it was keeping my body heat in. It's warmer than what you would expect for something of it's thickness. They also did a nice job with fabric darts on the sides (you can't really see it in this picture...looks almost like it was photoshopped out) that's very becoming.
Date published: 2016-02-06
Rated 5 out of 5 by from LOVE, LOVE, LOVE these tops!! I have 5 of these tops in different colors and styles. I wear them for work and for play. I initially bought them in a size too big because they fit snug when you first put them on, which made me think I needed the larger size. However, once I had them on for a short while, the fit relaxed a bit, making the larger size too large. This is the only downside to these tops, but I didn't think it was important enough to reduce my rating from 5 stars to 4. Outside of that small issue, these are the most practical and versatile tops I've ever owned.
Date published: 2013-12-03
Rated 4 out of 5 by from doesn't fit as well as last year's model I have this top in last year's and the previous year's colors and LOVE them. Both older tops fit much better than the new one though. This year the sleeves and torso are much longer (my arms haven't grown), but the shoulders are tight in the armpits. The new fit is best for women who don't have shoulder muscles. If you have muscles, look for a used top from last year. I love most of my Smartwool clothing and will keep this top, unless the armpit digging drives me too crazy.
Date published: 2013-01-02
Rated 5 out of 5 by from I love Smartwool clothes! I've had this top and bottoms for a good long time - 5 yrs or so. Expensive, but worth the price due to quality and durability. Keeps you super warm, but also breaths well and wicks the moisture. I wear this underneath when I'm snowboarding, and it's great at keeping me warm and wicking away sweat! I also wear this at high altitudes when I need the extra layer for warmth. It's starting to get some holes, and I'm sad I have to get another top and bottom, because of the steep price, but I just think, another pair will last me just as long. Love this brand!
Date published: 2012-12-26
Rated 4 out of 5 by from Durable and Warm SmartWool brand is a little on the pricey side, but it wears great (spread out the cost over a number of years of wear), and is really comfortable. I have used SmartWool both in daily use (it's part of my go-to layering routine for varying cold weather temps in TX), and camping (great and lightweight/packable on hiking trips). The midweight gets itchy/uncomfortable to wear without an under-layer in temps above 40 degrees (but this is common for all wool materials with me). I love the zip-top option, because I don't always like something around my neck, but it offers a little extra protection when needed. The zipper and zipper pull are also of good quality and not too bulky.
Date published: 2014-02-06
Rated 4 out of 5 by from Pretty darn great I really like this pull-over and can wear it to do almost anything. I bought the black one and it's in a size small. I'm approximately 5'11" and 140 pounds and the Small fit me perfectly. I usually wear larger sizes in other clothing but Smart Wool tops seem to run bigger than other brands. I like wearing this either under a down jacket or just wear it over a tank top depending on the weather. I haven't soaked this product in water yet to see if it dries quickly so I'm not sure about this particular feature yet. It's not super "breathable" but I think it's perfect for the way I use it.
Date published: 2013-09-13
Rated 4 out of 5 by from Very nice but too itchy for me I got this as a 2nd base layer to wear under a jacket or alone. I loved it because it wasn't too thick. I have Smartwool socks and love them so I thought this would work but it was too itchy for me after about 10 minutes I had to take it off and reluctantly return it. Too itchy!!
Date published: 2013-03-21
Rated 4 out of 5 by from Nice weight, but wore out the elbows I looove the weight and feel of this zip up--it's so comfortable and the perfect warmth for cool spring and fall days. It breathes well and can be worn for days without smelling. But (probably because I work a lame desk job and have my elbows on a desk all day, and I was wearing it in my over-air conditioned office) I wore holes in both the elbows in less than a year. I think it would have held up better if I had worn it to go hiking and biking and camping than to work...
Date published: 2015-04-03
  • y_2017, m_7, d_19, h_10
  • bvseo_bulk, prod_bvrr, vn_bulk_1.0.0-hotfix-1
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  • REVIEWS, PRODUCT

Questions & Answers

What is the difference between this and the NTS 250 top?

Asked by: Amuz
​The only difference between the Midweight Long-Sleeve Zip-T Top and the NTS 250 top is the zipper. Both are made with a midweight merino wool.
Answered by: REIservice
Date published: 2017-02-12
  • y_2017, m_7, d_19, h_8CST
  • bvseo_bulk, prod_bvqa, vn_bulk_1.0.0-hotfix-1
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_1
  • loc_en_US, sid_834123, prod, sort_[SortEntry(order=NUM_ANSWERS, direction=DESCENDING)]
  • clientName_rei-inc
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getContent, 37ms
  • QUESTIONS, PRODUCT