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You can't go wrong with microweight wool.

The SmartWool Men's Microweight Short-Sleeve T-Shirt is airy and breathable enough for a summer hike, and wool's naturally quick-drying properties help you stay comfortable in the cooler months too when you layer it under a softshell. Thanks to the shirt's dapper look and anti-odor properties, you can keep it on when you hit up the riverside pub for drinks later. They won't throw you out for smelling like a yeti.

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SmartWool NTS Microweight T-Shirt - Short-Sleeve - Men's

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Here's what others have to say...

4 5

Comfortable Shirt!

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

I bought this shirt to wear as just an everyday t-shirt, and must say it is very comfortable and has a great athletic fit! A little on the pricey side for a t-shirt though, even though it is merino.

5 5

pretty darn psyched

merino wool is great and smartwool has been doing it for a long time. this shirt breathes and wicks well and dries quickly. i'm a pretty sweaty dude but had no issue taking this off after a workout and going to lunch without a shower: i was already dry and didn't smell. wouldn't have considered that in cotton shirts. the fit is superb. it's cut longer than icebreaker so i can wear a medium with a more athletic fit instead of having to size up. my chest size puts me in a size large, but my waist is a size medium. went with the medium and it's very comfy.durability has been good for me, but i haven't worn it backpacking, so i can't speak to the wear and tear another reviewer had.

Can I add another item to a previous, 20...

Can I add another item to a previous, 20 minutes ago, completed order?

Responded on

If you "live chat" (the link is at the top of every backcountry page in the middle) with a backcountry rep they should be able to help you out with something like that, and you will get a much quicker response then by posting a question here.

3 5

Smartwool Shame

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

When I first had encountered SmartWool products years ago, I was duly impressed; one pair of socks lasted well over a year without exhibiting obvious and detrimental signs of age! So, needless to say, when I found out about this shirt, I decided I would give it a try. My memories of their products were fond enough that I didn't even really look into the shirt or the reviews of it before I purchased, but that's the last time I will do that.
I had garnered some credit from returning other products that I had purchased over the span of some months in preparation for a PCT thru-hike, so I figured I could use a shirt that would last me a few months. While a thru-hike is inevitably tough on your gear no matter what you do, I did not expect such degradation that I have encountered so rapidly. I wore this backpacking for less than two days before a number of holes had formed in the fabric in various spots, places in which I suppose the backpack had rubbed a bit. Right where the hip belt sits and clips is, by and large, the most eroded area, but a multitude of spots have slowly formed since I first got the shirt a few weeks ago.
To extend some credit towards this piece of apparel, it does do a relatively acceptable job of wicking and drying, and a decent, but by no means great, job of keeping body odors and other scents to a minimum.
After the recent experiences that I have undergone with SmartWool products, I don't believe I will be purchasing from this company/ brand any more.
I will, however, posit that the shirt would be good for light use around town, or if you are just looking for something unobtrusive and breathable to hit the town with for a few hours. Don't expect it to stand up to much if you are wanting to go on a multi-day hike, or a intend on wearing it for days at a time though. You will be sorely disappointed. I know I have been.

5 5

I should be a Smartwool rep

I absolutely love Smartwool's microweight t-shirts. They're great baselayers in cooler fall weather and a fantastic stand-alone t-shirt for warmer weather, which makes them great for climbing. They're a bit on the expensive side, and I'm always afraid I'm going to tear them up climbing, but so far I haven't. They seem pretty durable and as long as you don't snag them on something really sharp, you should be OK. Fit is always an issue with me, but never with Smartwool products. They absolutely nail the fit, being a bit on the athletic/slim side, but just the right amount in the right spots. My skin is also a bit on the sensitive side, but I've found with these shirts, once I get a little sweat going, the minor itchiness goes away. I've even gotten used to wearing them when I'm not active and they don't bother me too much, but I wouldn't buy them with the purpose of wearing them as an undershirt to the office. Not what they were designed for. And, of course, you can wear these for days and they don't stink. Wool is the way to go, and Smartwool is the best of wool brands.

I cannot seem to find the weight specs for...

I cannot seem to find the weight specs for this anywhere - can anyone be so kind to enlighten me, or perhaps send me in the right direction?

Best Answer Responded on

I'm almost positive this is 150 g/m2. If you check the Smartwool website you'll see their "microweight" is 150:

I own the shirt the link points to and it's exactly the same as this one, just with the horizontal stripes. This is also in line with weights of other brands microweight wool t-shirts.

So actual weight will of course depend on size.

4 5

Good shirt

  • Gender: Male
  • Familiarity: I've used it once or twice and have initial impressions

I bought this and the Stoic Merino Crew at the same time. This one is perhaps not quite as soft as the Stoic and I find that I am aware of the seams when I am sitting at my desk at work. I have bought these mostly for use as undershirts which makes my opinion on it a bit different. That said, this shirt performs the way I expect.

5 5

Light comfortable packable.

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

I love these line of shirts. I have 2 long and 2 short. They are a great base layer. They are very soft your hardly know they are there. Not to mention they are stylish as well.

5 5

Year-round utility

I've worn this as my "core" base layer on multi-day trips in both cool and warm weather and it performs the best of any hiking/travel t-shirt.

Without the availability of washing, the wool holds up well and doesn't reek like synthetics.

Even with the microweight weave, the shirt holds up to abrasion well. I've snagged it on thorn-covered plants and along rough climbs with no wear or holes to show for it yet.

4 5


Excellent shirt that doesn't stink after 5 days backpacking. I've put this shirt through its paces and wool will replace most of my polypro items in the future. Has pilled a tiny bit after fairly heavy use and will stick with polypro items for things like rock climbing due to abrasion resistence.

3 5

Good fit, but color was NOT as seen

Good fit, good feel, good Merino wool, but...
the Chino color did NOT turn out as per the pic, and it's difficult to iron after machine washed (as recommended on the label).

4 5

Very Good Product

I purchased two of these shirts primarily for working outdoors in the middle east. About a month before my work travels, I wore both on a few day hikes in both cool and warm climates. I normally sweat a lot with cotton shirts and found these a vast improvement over cotton and the expensive synthetic - plastic materials.

The smart wool shirts were somewhat "itchy" until after two or three washes. I do have fairly sensitive skin and normally don't wear wool products directly against my body. These shirts are the exception and have held up very well under intense heat, buckets of sweat and wearing a large backpack. My black color shirts will pick up some lint during the wash and drying cycle. I have also let them air dry on a plastic hangar with similar results. It's still a very good product.

They dry much faster than any other shirts I have worn and smell better. Even though the price is higher than a cotton t-shirt, I believe these shirts are still a great value for the price.

5 5


Awesome shirt. Fits true to size and very athletically. I've worn it on many multi-day long milage backpacking trips, and it has stayed funk-free and useable after some long hours on a sweaty dude. Dries out quickly too, which means you can get back to it faster. Overall, I'd recommend you buy plenty. You'll love them.

Flying over Niagara Falls

Flying over Niagara Falls

Don't know if this is the usage Smartwool had in mind when they made this shirt, but it works great for those 8 hour flying days.

5 5

Excellent! Buy several.

I own 4 of these shirts and wear them almost every day in the summer. It doesn't matter how good a synthetic shirt claims to be, how much carbon they attach to the threads etc., they all stink after physical activity. This shirt on the other hand doesn't care how much sweat it soaks up. It never smells bad. And it wicks moisture and evaporates it just a good as a synthetic shirt.

A good anecdotal story I tell people about Smartwool t-shirts is how I helped a buddy of mine during his recent move. I wasn't the guy just standing around telling everyone else where to put stuff. I was lifting furniture up and down several flights of steps, getting really sweaty. I ended up passing out in this t-shirt that night. I woke up the next morning and went jogging for 10 miles, still wearing this shirt. After all that sweating I was amazed how this thing didn't smell bad at all. Of course, I did, but the shirt didn't smell like anything.

Wash these on a gentile cycle as they are slightly delicate and let them hang dry. You won't regret this purchase.

5 5


I believe this is 150g Merino.
The microweight was my first Merino shirt. I haven't looked back since then. I am slowly building up my Merino arsenal.
I love how the Merino wicks and dries extremely quickly. Ideal for any outdoor activity, but a must for backpackers.
Smartwool tends to run a bit more relaxed as far as fitment than Icebreaker and a few other companies.
I would buy this shirt over and over!
6' 135lbs, Medium is a bit baggy.

5 5

Almost Perfect

As the other reviewer mentioned, these are great for backpacking, and are an ideal choice for warm weather, especially in the microweight thickness. They soak up sweat well, and you benefit from evaporative cooling. These are extremely soft against the skin, as are all of SmartWool's products. I like the cut and fit as well; fitted, but not skintight, and definitely not baggy.

I don't wear wool all the time, as I find myself drawn to plastics, recycled plastics, more and more. Sometimes, however, wool just feels right, and SmartWool does wool right, whether it's shirts, socks, beanies, or baselayers.

If I have one gripe, it is the tag, which sits about 3-4 inches up from the hem on the side seam of the shirt. It is just high enough to be against my side, and not against my shorts. Sometimes I notice it, sometimes I don't, but when I do, it bugs. I have even turned my shirt inside out on a hike to avoid it. I have no desire to take scissors or a blade to my new $65 shirt to cut it off.

For this kinda dough, I expect these shirts to be perfect. So many companies have gone tagless; I beg you, SmartWool, do the same. I am still giving this shirt five stars, but until they go tagless, "Almost Perfect."



Responded on

Great as a base-layer in a multi layer system. A little chilly if it is all you are wearing. On colder ski days, i.e. <20F, I will layer this under a mid-weight and then under a soft-shell.
Hope this helps

5 5

a shirt for all seasons

A wool T shirt seemed like an oxymoron to me. A few years ago I bought one on sale thinking it would be a winter or fall base layer. Fast forward to last month...the airlines lost my baggage on a cycling trip to Italy. My smartwool microweight T shirt, black by the way, was all I had for two weeks. This shirt doesn't absorb body odors, doesn't wrinkle, dries relatively quickly,and keeps it's shape. I wore it riding, hiking, to dinner, on the plane and never looked in the mirror and cringed at the sight. The color black looked a little more "smart casual" and didn't show dirt. They also work in hot weather as well as a cotton t shirt. I own several of these shirts now and wear them year around. I highly recommend them.