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When you get back to the lodge after a powder day, you peel off a rank baselayer and are met with nose-crinkling stank. Pull on the Arc’teryx EON SLW Crew Top for a naturally odor-resistant baselayer that doesn’t sacrifice warmth.

  • Merino wool stays warm even when wet so you don’t get chills after sweating or nose-diving into a powder bank
  • Gusseted underarms allow full range of motion whether you’re pole planting or digging for your lost poles
  • Highly resilient stretch maintains skin contact to maximize thermal efficiency and reduce layering bulk
  • Flatlock seams add comfort and minimize chafing so you can go hard during après-ski time as well as ski time
  • Reviews
  • Q & A

What do you think about this product?

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I have two - Want more

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

A little about me. 5'10", 165lbs., 42" chest. I like function and style in equal measure, with function winning if the two conflict. With these shirts, the only thing I have to give up is the extra money, which I am more than happy to do after wearing them. Originally purchased a medium. Returned it as it dug in to my armpits too much. Fit great everywhere else. If you are athletic and have developed shoulders, chest, my advice is to size up. The great thing is that going up to large did not mean compromising on fit. It hugs well enough in the back and arms not to get the "static effect" I get with baggier wool shirts in the winter, but is loose enough in the armpits that I don't feel constricted or become chaffed.

To compare, I own merino clothing from Smartwool, Patagonia, Ibex, Icebreaker, and Arc'teryx. All of those brands have good quality in my opinion, but for comfort, Arc'teryx is my number one, with Ibex being a close second. I have sensitive skin, so those who don't may not notice a difference. As for looks, I like the fit of the large Arc'teryx much more than all other brands. It looks sharp, and I frequently wear the black one out on the town.

So, to sum it up. These shirts looks good, function well, and SHOULD last a long time given Arc'teryx's track record. If they do not hold up, I will edit my review here. As of now, I whole-heartedly recommend this product to anyone who wants comfort and style in outdoor clothing.

NOTE ON COLOR: The buckeye color is not nearly as red as the picture. It's a red clay/maroon color.

Wish I had more

  • Familiarity:I've used it several times

I bought this baselayer thinking it was a loose fit and because it was on sale. When I received it I was surprised when it was next to skin fit. After one shred with it on I've yet to take it off. Feels great against your skin. Great first layer.

Arc'teryx EON SLW Crew Top

  • Familiarity:I've used it several times

I was very pleased with the quality and the fit. Very warm and very comfortable. The merino wool feels very soft against your skin. I would recommend these for outdoor and out on the town wear.

Great base layer

    Same review I wrote for the short sleeve version...
    I don't like tight clothing and had to order the XXL so that it didn't feel like a compression shirt. I'm 6'0" 175lbs. It's super light and takes almost no space in your bag or pack. Really good warmth from a fabric this that I'm thinking it will make the perfect sleep shirt while snuggled in the down during a sub-zero winter camp. The shirt has kept it's shape very well after 4 washings with no pilling. I think it's the near perfect base layer for medium active sports.

    What is the thickness/weight on these? ...

    What is the thickness/weight on these? Like Smartwool Lightweight/Icebreaker 200 or Microweight/150?

    I stand about 6ft 0.5inch tall and weight...

    I stand about 6ft 0.5inch tall and weight around 198 pounds. chest 42inch, waist 38inch, hip 41inch.

    which size will fit me best? L or XL?

    Write your answer here...
    If the stretch and size is similar to the rho LTW, I would say that medium is good for next to the skin 1st layer wear and large would be better for 2nd layer wear. I am 6' 6" with very similar measurements. You have a large waist, large shoulders, medium hips.The stretch would make the medium very wearable. I have 3 medium rho ltw's and 1 large