Home

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
  • SKU: 27586985

REVIEWS

4.0
70%
Recommended

16 Reviews

Longer Fit Adjust Accordingly

Best hot weather shirt. Drapes nice and barely feel like wearing a shirt. 2026 is a longer fit at the waist vs last years run. They should just offer T sizes as this may fit off on some.

Great Hot Weather Tee

A great HOT weather tee. Great fit. Not just a tube with three holes.

Best Fit

I like this fit much better. The 2026 fit is the best.

A Disappointing Shift In Quality

The Cormac shirt was my long-standing go-to, specifically dating back to the original Arc'teryx LEAF line. Those older iterations have held up exceptionally well through years of heavy use, showing minimal wear. Unfortunately, recent revisions have been disappointing. While the fit was eventually corrected after some inconsistent sizing updates, the fabric quality has notably declined. A shirt I purchased less than a year ago is already showing fabric runs and fraying seams. The current, lighter-weight material feels even less durable, and I am concerned about its long-term viability. The attached photo illustrates the stark quality difference between the older and newer versions. I have been fan for over a decade, but now I'd not recommend this product.

Great Upgrade!

This is a huge upgrade for me, being 6'4 I struggle finding shirts that are long enough in the torso and this one delivers exceptionally. The shirt is very breathable and keeps me cool in the heat and humidity. Doesn't chafe either.

Great T-shirt For Technical & Casual Environments

The 2026 cormac is a major improvement in my opinion. The new fabric is extremely light, breathable, and quick drying. It also has a waffle texture, which gives the shirt a more casual appearance and works outside of the trail or gym. The cut is looser, so perhaps size down if you prefer a more tailored fit.

Love The Material, Design, And Fit.

I've been solely a Lululemon customer for technical wear for the past 8 years. I've recently tried Arcteryx and purchased 2 of these shirts and one Gamma Shorts (more to come). Because I'm a new customer, I can't compare with the previous iterations. But I find the material and shape/fit of the Cormac to be superior to the Lulu License to Train (the equivalent tier) tee shirts. And I'm surprised that the Cormac fabric is of Japanese origin which means superior quality and perfection. This will be my main shirt for the hot summers outside and in the gym. I'm atheletic/muscular 5'10" and the M is a good fit. The subtle green and blue color looks great. I'll have to buy the black and grey when they're back in stock. I just hope the shirt retains its shape over time.

Revised Shirt Lacks Quality And Functionality

Wish they would have never revised this shirt from the older models. Not durable like they used too be. I have 3 Cormacs from 2019-2024. They breathed great, held up under any condition, and overall just felt great on my outdoor activities. I bought one of these and the threading already has started coming undone and I just gave it to a friend. Its really a shame that they changed so much especially the texture and tech aspect of the shirt. Plus the price point increased. I don't know what arcteryx is doing with the revision of the materials but it just seems they are trying to cut cost and improve their bottom line. I was a very brand loyal customer but I'm starting to find myself upset with the changes they are making and shopping for different brands when it comes to my trail running gear. Just overall, unhappy with the changes. What happened to arcteryx being the front runner on technically sound outdoor gear. Seems like they are just trying to fit into trends instead of functionality.

New Cut, And Good Material

Obviously, it is baggier than the previous version once I put it on my body. I just got no idea of the designer, why change this tshirt in continuous three years. I bought cormac in the past three years. Everything is changing, the cut, the material and the UPF capability. My body shape is just good in size M for the past cormac. Now the new cormac is longer in length and even baggier. So I need to find a tailor to cut the length to make it fit. The only good news is the new material feels good than ever. The texture is not bad. My recommendation is you better try it before you buy.

Simple And Essential

Simple piece, but it hits. Breathes like it's barely there, dries fast, and doesn't turn funky after days of movement. I've worn the same one through a week of backcountry trips and it's still showing up every trip. For a t-shirt, it does a lot of work.

Great Shirt

A really great T-shirt style shirt. Comfortable, breathable, wash and wear, light weight. Excellent for travel and everyday wear. I have several Cormac Crew shirts and live in them.

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.

Read All Reviews (16)