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Natural backcountry performance.

When you head out for an epic powder day, three-pitch ice climb, or a backcountry snowshoe tour, the Smartwool Men’s Midweight ¼-Zip Top is the perfect way to start your layering. Made from soft, stretchy, odor-resistant merino wool, this zip shirt wicks moisture and dries just as quickly as your synthetic baselayers in a comfy, all-natural package. Flatlock seams eliminate chafing on aerobic outings.

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SmartWool NTS Midweight 1/4-Zip Top - Men's

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Here's what others have to say...

5 5

The Only Choice

  • Familiarity: I've put it through the wringer

I use this mid weight as my layering base for all my activities. From walking the dog to summit a 14er.The wool is real efficient at wicking moisture and keeping you dry. It dries super fast and has stood up to a good amount of abuse. Great price for a mid-weight.

5 5

Double Duty as Light Sweater

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

As most people have mentioned, this is an excellent base layer for ourdoor pursuits, but rarely mentioned is what a great everyday sweater. I'm warm natured and have trouble wearing true sweaters because I sweat inside when out to dinner, etc., but with it's self regulating properties and understated styling, it makes for a great mid-layer if you size up. I'm 6' 215lbs. with a 46" chest. I normally wear a L or XL in shirts, but this is cut as a skin tight base layer, so I size up to an XXL to serve double duty as a mid. Last one lasted me 4 years and I'm only buying a second because I have small holes in the hem from opening beer bottles, guess that's why I need the XXL.

5 5

Smartwool FTW!

  • Familiarity: I've used it several times

Great slim fit. Hugs the body well the way I like my baselayers to. I'm 5'7" and 150lbs and both their tops and bottom base layers in small fit me like a glove! I use these layers as baselayers while cycling in the fall/winter. Soaks up sweat like no tomorrow!

Versus Icebreaker: I like the fit of Smartwool more than the corresponding Icebreaker body fit item. IB feels a bit looser and not as snug as Smartwool. But IB feels a little bit warmer (260gm vs 250gm) and has those great thumb loops. But in the end, I think the snug (but not tight) fit of Smartwool will be more effective in the long run.

5 5

Great Slim Fit

  • Gender: Male

I wear this regularly as a regular top, or as a true baselayer when mountaineering/backpacking. It has a slim fit, which is great. It's super comfortable, not very durable but still very good. Since it's wool, it doesn't smell even after repeated use without washing (c'mon, college kids hate laundry). It's very comfortable and soft.

I'm 6'1, 165 lbs and I wear a size M.

5 5

SmartWool NTS Midweight 1/4-Zip Rocks!

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

I wear this top mostly as a backpacking mid-layer (over a wicking short sleeve tee). I wear it mostly when mountain air starts to cool at the end of the day. The quarter-zip feature lets me adjust to varying trail temperatures. I have sensitive skin and he merino wool causes no itch whatsoever (and no stink whatsoever). One of my favorite shirts.

Pic shows me and my SmartWool on solo backpacking trip on a section of Arkansas' Ouachita Trail.

SmartWool NTS Midweight 1/4-Zip Rocks!
5 5

Luxurious feel, very warm, keeps you dry, looks great

Since discovering Smartwool about 11 or 12 years ago I've stood by them. With a single exception their products have been nothing but spectacular... and this shirt is no exception.

Its a wonderful weight, feeling substantial and cozy... and is luxuriously soft. This shirt will remain smelling fresh despite putting plenty of miles over the course of days on it. Its a fantastic base or mid layer... helping keep you dry and warm. The stitching, as with all their products, is top notch. I've used other brands... and Smartwools stitching seems to be the most tenacious... and comfortable.

I can't enough great things about these shirt, or many of their other products. Yes, they are pricey... but once you own one you won't go back.

5 5

Mmm wool

It's smartwool have you ever had a bad piece of it? Least I haven't does as advertised, and comfortable too.

5 5

The Best

Soft, comfortable and warm. What more could you want!

5 5

Gift success

Bought this for my Husband. he is 6'7 and I chose the XL as I know he prefers a close fit (205Lb). It works very well and it a wonderful base layer... I judge it as a success as he literally wears it every day! I'm going to love the smart wool odor control!

5 5

wet, dry, cold, warm - it's always perfect

This top came highly recommended and after two weeks of use i absolutely love it. Comfortable on chilly days as a T under a dress shirt, but also saved my tail when i was unexpectedly caught outside for 4 hours at camp without heavy clothes. Even stayed comfortable after getting sprayed by a busted hose. great gear.

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2 5

Poor Sizing

I have an older SmartWool sweater, sized M-L (yes medium-large) the sleeve length is generous. I've washed it 100 times, air dried- love it. The sleeves are still nice and long. After reading these reviews, I decided L was for me 6'0" 190lbs. What a disappointment. Sleeves are well above my wrist, body length short (width was OK). I want consistency in sizing and I realize their China Made sweaters are subject to China-Made "adjustments" but for the price we pay for Merino Wool I think a little consistency in sizing is expected. PLEASE manufacturers CONSISTENCY! Perhaps detailed sizing recommendations from Back Country. I gave this a 2, because I look at it, dream it fits, go to my happy place and all's perfect.....

5 5

Favorite Smartwool product!

Bought this NTS midweight for my husband in Brick Heather. Attractive color. He loves the fit, fabric, and style so much I ordered a second one in olive. Fabric very smooth, non-pilling. Not easy to snag either. XL size accommodates his slim but tall frame (6'4") which is sometime difficult to find for taller men who have longer arms. Warm, Would highly recommend.

5 5


This is a very pricey shirt but worth every penny. A perfect mid-weight shirt. Not only is it a nice looking but it wicks moisture so well and feels good on your skin. I always trust SmartWool to make a quality product. The quarter zipper helps if you do start getting too warm.

5 5

Smartwool mid weight 1/4zip

Great in all respects. Xl size is perfect for me (6'2", 210, 35" sleeve), doesn't shrink, doesn't stink, neck is just e right height. I use the mid weights in winter, the lightweights the rest of the year. Have used a lot of Icebreaker and while the wool is great the sizing is skimpy and they do shrink, plus being significantly more expensive. The neck on the Patagonia doesn't bear speaking about, this is the best midwest wool top going and extremely versatile.

5 5

SmartWool NTS Midweight 1/4-Zip Top - Long-Sleeve

This is a great midweight baselayer from SmartWool. I have had mine now for four years and have not been disappointed with it. I use this as my baselayer when my Capilene 2 is not adequate for the temperature. The wool is super smooth and causes no irritation. Zipper allows me to ventilate when needed. When layered it performs very well(remember to stagger your zipper). I am 6'1", 180 lbs and the large fits me very well.

Another perk of this "baselayer" is it can double as a nice sweater(depending upon color)! I have actually used this more when walking around town during the winter or watching soccer games. SmartWool did a great job in making it stylish enough to serve a double purpose. If you take that into consideration, you are essentially paying $40 for two products.

5 5

The Smartest Shirt I've Ever Owned

I needed a wool layer for winter hiking but was hesitant to purchase this shirt due to the price. I ended up buying it during a 20% discount sale and I'm glad that I did. I'm 5'9" and 165 lbs and ordered a medium. It fit like a tight undershirt which is probably good as a baselayer but I wanted to also be able to wear it over a t-shirt so I returned it for a large. The large fit perfectly.

I haven't had a chance to use it in the winter yet but have used it on spring hikes over a synthetic t-shirt when the mornings are a tad cool. It keeps me comfortable and I tend to keep it on late into the morning when I figured that it would probably be too warm.

As for the odor-resistance. I wore it on a hike and then set it on the dryer to wash. When it was time for another hike a week later I realized that it hadn't been washed yet. I checked it and it still didn't smell so I wore it again.

Overall, a great shirt. I can't wait to try it out in the winter.

5 5

midweight 1/4 zip

I have had this for thing for about a month, have gone out on a few late winter bike trips with it as stand-alone top on warmer days or under soft shell. The thing fits well; I got an XXL (XL would also have worked) for 6'5" 215 lbs. It doesn't stink up, it washes well and didn't shrink although I dried it flat on a towel. I would buy another on sale for sure.

4 5

Pretty good in Big Sky

I've been using this top with the knee length Smartwool bottoms for the past week in Big Sky Montana. They've worked great even when I'm sweating. I also have an Icebreaker crew top in 260gram weight and the Smartwool is noticeably thinner. I'd say this is great for bluebird and cooler days but you'll def need a midlayer for anything south of 20'. Doesn't smell too bad at the end of 5 hours of pow and washes fine without shrinking

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