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Arc'teryx Men's Cormac Crew Neck Short Sleeve Shirt

About This Item

A few hours or multiple days, running or hiking-you move through adventure at your own pace. Inspired by runners, then refined to offer the versatility to handle a wide range of high-output mountain activities, the Cormac is designed for performance and comfort. Its 100% recycled Phasic™ LT fabric wicks moisture, breathes, and is treated for odour resistance. The fit maximizes airflow and moves with your body, the low-profile collar layers comfortably, and the seam design minimizes friction.

Fit & Design:

  • Fit and style lines improve airflow through the garment for cooling
  • Crew neck
  • Taped neckline interior for clean, comfortable finish
  • Breathable, lightweight
  • Merrow stitch seam construction reduces seam size and irritation
  • Phasic™ LT has excellent moisture management and next-to-skin feel, designed for comfort in a range of temperatures
  • Articulated patterning for unrestricted mobility
  • Reflective logo adds visibility in low light situations

Technology:

  • Moisture-wicking
  • Quick-drying

Additional Details:

  • Machine wash gentle low
  • Tumble dry gentle low
  • Do not bleach
  • Wash dark colours separately
  • Do not dry clean
  • Do not iron
  • Do not use fabric softener
  • Double rinse
  • Do not wring
  • Brand : Arcteryx
  • Country of Origin : Imported
  • Web ID: 24AYTMCRMCCRWSSMXMOA

REVIEWS

4.2
81%
Recommended

34 Reviews

Received incentive

Super Comfy

I have quite a few of these and love how comfortable they are

New Style Doesn't Fit Me

I've purchased many of the older Cormac shirts. I love the breathability and the old style fit me perfectly. But they've changed the fit with new style, it is a few inches longer and wider around the waist. Don't fit me nearly as well as the old style. Returning it.

Finally. The Best Shirt Is Back.

As an avid purchaser of this shirt for a decade. This is a welcome revision. Great job. Thanks for bringing back black. The collar detail is a nice touch.

Prefer The Previous Season

I purchased two Cormac short-sleeve shirts from the previous season, and they are in constant rotation. The 2026 revised version is, for me at least, much more flow-y and much less fitted. The t-shirt is objectively longer than the previous season; there is more fabric. Overall, I feel the shirt is less appropriate for technical/sporting pursuits, and more akin to a casual tshirt. I far prefer the earlier version.

Better Fit And Fabric

Revised Cormac for 2026 has an updated fit and fabric. Both are positive changes in my opinion. The neck/collar opening is slightly smaller on this version compared to the last which was too large. There is an extra few centimeters of fabric in the body length and sleeves. Fit seems more flowy but less boxy compared to the last version. I don’t see a SPF rating anymore which could be the only negative change.

Fit

This shirt is very comfortable and I like material. I bought LS last year and fit was good. This SS version I don't like fit. Front, shoulders and chest perfect, but the bottom part in the back rises up and looks a little wider than it should be. The e back part of the shirt seems shorter than the front, although it is not because of the cut. I will return it.

Give Us A Black Tshirt !!!!

Durable comfortable shirt especially to wear in layering. Not having an all black option is a horrible choice.

Tall Sizes Please

Please make TALL sizes! when I climb and raise my arms above my head the shirt is to short and pops out of my harness and I hate that.

A Must Have In Kit

Cool, comfortable, durable, great fit and quick drying. The Perfect hiking shirt under my Atom or my Gamma Lightweight. I don’t have enough for every day of the week, but I’m working on it.

Disappointed!

Prior to this latest "Revised" version of this shirt, the length of the short sleeves were longer which kept the shirt sleeves from riding up into your arm pits. Now this "Revised" version has made the short sleeves too short and, as a result, the sleeves won't stay down in place and they ride up your arm during any kind of activity. Please bring back the longer short sleeves and also please create some new neutral colors.

My Do Everything Shirt

This shirt is very breathable and comfortable, and I think it fits even better than the long-sleeved version. It is still slightly tight across the chest, but I really cannot find any other faults. It is perfect for hikes, jogs, or the gym. If you need a go-to shirt that you can wear anywhere, this is it.

Ok, Not Great

I use this shirt for trailrunning, so high intensity output. But it's not suitable for warm weather (+18 deg celsius). It's not that breathable and soaks up sweat easily. After getting wet, my nipples starts chafing. Fit is fine. For it's price, it lacks top tier performance!

Great Shirt But Sizing Can Be Inconsistent

The fabric is amazing for high output activity. I have 4 of these (from 2021, 2023, and 2025) that I use for running and hiking and gymming. My only complaint is that sizing can be inconsistent. I have a 2023 Cormac SS in Pytheas Heather that fits a lot tighter under the armpit. Not sure if it was just that iteration because I have another Cormac that was produced two months apart in 2023 in Arctic Silk color (also in Medium) that fits comfortably.

Needs Real Black Color.

Love the shirt. Not sure why they don't make it in a real black that doesn't show sweat.

Peace Of Mind Shirt

Recently wore this shirt to a cycling class and I will be back to purchase more. Love how the breathable lightweight material allowed me to stay cool the entire time. I didn't even have to worry about BO as it was odor resistant and continued working out with a peace in mind. The fit and airflow defiantly stand out!

Read All Reviews (34)