Arc'teryx Delta Half-Zip Fleece Pullover - Men's
Built for comfort and performance across a range of activities and output levels, the men's Arc'teryx Delta Half-Zip fleece is a technical zip-front pullover. It delivers warmth with minimal weight.
- Innovative fleece insulation has a unique hollow-core fiber construction; the insulation delivers an exceptional warmth-to-weight ratio and soft comfort
- Phasic™ AR II engineered polyester fabric panels under the arms are soft, offer stretch and thermal comfort, and are made with wicking fibers
- Fleece construction creates a smooth face for improved durability and more comfortable layering
- Fit for easy layering, the Delta also shines as a standalone piece
- Articulated patterning for unrestricted mobility
- Flatlock seam construction improves next-to-skin comfort
- Elastic binding secures hood
- Chin guard for added comfort
- Elasticized cuffs
- Laminated chest pocket
- Deep front zipper for easy on/off and rapid ventilation
- Elasticized bottom hem for secure fit
Imported.
View the Arc'teryx Delta Product LineView all Arc'teryx Men's Running Jackets| Best Use | Running Fitness Trail Running |
|---|---|
| Sweater Type | Partial-zip |
| Fabric | Octa polyester fleece, 40-denier Delta face, Polygiene, 122 g/m2 |
| Sleeve Length | Long Sleeve |
| Hood | No |
| Back Length | Hip-length |
| Back Length (in.) | Unavailable |
| Gender | Men's |
| Weight | 7.2 ounces |
| Sustainability | Contains recycled materials |
| XXS | XS | S | M | L | XL | XXL | XXXL | XS Short | S Short | M Short | L Short | XL Short | XXL Short | S Tall | M Tall | L Tall | XL Tall | XXL Tall | 28 | 30 | 32 | 33 | 34 | 36 | 38 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chest | 33 | 35 | 37 | 40 | 43 | 47 | 51 | 54.5 | 35 | 37 | 40 | 43 | 47 | 51 | 37 | 40 | 43 | 47 | 51 | |||||||
| Sleeve Length | 30 | 31.5 | 32.5 | 34 | 35 | 36 | 37 | 38 | 32 | 33 | 34 | 35 | 36 | 37 | 33 | 34 | 35 | 36 | 37 | |||||||
| Waist | 27 | 29 | 31 | 34 | 37 | 40.5 | 44.5 | 48.5 | 29 | 31 | 34 | 37 | 40.5 | 44.5 | 31 | 34 | 37 | 40.5 | 44.5 | 30 | 32 | 34 | 35 | 36 | 38 | 40 |
| Hip | 32.5 | 34.5 | 36.5 | 39.5 | 42.5 | 46.5 | 50 | 54 | 34.5 | 36.5 | 39.5 | 42.5 | 46.5 | 50 | 36.5 | 39.5 | 42.5 | 46.5 | 50 | 35.5 | 37.5 | 39.5 | 40.5 | 41.5 | 43.5 | 45.5 |
| Inseam | 31 | 31 | 31.5 | 32 | 32.5 | 33 | 33 | 29 | 29.5 | 30 | 30.5 | 31 | 31 | 34.5 | 35 | 35.5 | 36 | 36 | 31.5 | 31.5 | 32 | 32 | 32 | 32.5 | 33 |
Sizing Notes
Measurements are stated in inches unless otherwise indicated.
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Great fleece, for layering or as a stand-alone
Bought this from another reviewer’s recommendation for trail running. The problem with this is, that it looks so sharp and feels perfect for every day usage, so I actually use it at the office and almost every day at home as well (daybreak color has almost same colored pocket, which helps). I run really warm always, so this not being so warm actually works perfect for me. If you run cold, I would maybe reconsider buying this (unless to buy it for spring/autumn as a layering, or for high output exercise).
A favourite no more.
The Delta 1/2 was one of my favourite fleece layers for many years, unfortunately my old one finally succumbed to years of abuse so I replaced it with the new incarnation. The similarities pretty much end with the name. The new fit is baggier than the last and the material used is far inferior to the polartec fabric of the previous. The pocket on the front makes no sense for rock climbing, the shoulder pocket was much more useful. I've searched high and low online for the old style but it seems it can't be found. Here's to hoping the previous formulation returns in future seasons.
Hello there, thank you for sharing your experience with the new Delta 1/2 Zip Neck. We're sorry to hear that the updated design didn't meet your expectations, especially after years of enjoying the previous version. Your feedback on the fit, fabric, and pocket placement is invaluable, particularly regarding its use for rock climbing. We'll make sure your comments are passed along to our design team as we continually strive to improve our products.
As warm as a newspaper
As warm as a newspaper. Very thin fabric, so delicate it looks you can make a hole in it with your finger. The older Delta was nice and warm but this is rather a cooling jacket not something to keep you warm. But I get a feeling I would be warmer wearing nothing. The photos of the item are misleading, they create an impression the jacket is something in between RHO LT and Heavy. But its 50% lighter and thinner than RHO LT and should be priced accordingly.
Hi there. Thanks for sharing your feedback on the Delta 1/2 Zip Neck. We are sorry to hear that you are disappointed with its warmth and fabric and that it did not suit your needs. We will pass your comments to our team.
Great layering piece
Used it for trail running and as a base layer for skiing. Obviously the zipper gets cold on the skin, but the quarter zip helps dump heat in variable output activities. The material has held up, and shows no sign of beginning to stink despite >50 days using it. Tend to run hot, so I've used it as a base layer for -10 to 0 degrees on runs, and put another layer underneath/on top depending on conditions if it gets colder.
Deplorable Fit
I’ve two of the older Delta zip necks and was so looking forward to their reintroduction. I wanted to really like the new version but the fit is horrible. It is well made and I think the Octo fleece is nice, but the fit is way off. On the XL I purchased (47” chest), there is way too much fabric under the arms and across the upper back, that and the sleeves are sized like pant legs: too much girth and much too long. I usually wear a large or X-large and this fit like a roomy XXL if not larger. The large I tried had terribly short sleeves and was tight across the back and under the arms. To that end, the garment was returned. The only thing accurate I found is Arc’teryx fit statement that the new Delta is roomier than previous versions. That’s spot on. Perhaps I’ll try again with the spring 2026 release to see if there is improvement. The price is a bit off-putting, too.
Thank you for taking the time to share your experience with the new Delta 1/2 Zip Neck. We’re sorry to hear that the updated fit didn’t meet your expectations, especially after such positive experiences with the previous models. It’s clear you were looking forward to this reintroduction, and we understand how disappointing it must be when a trusted piece doesn’t fit as expected. We’re glad to hear you appreciated the Octa® fleece, it’s a standout feature in the new design, but we’re equally sorry that the sizing felt so off. You’re absolutely right, the current Delta series does offer a roomier fit in the body and sleeves compared to its predecessors. This was intended to enhance comfort, versatility, and freedom of movement during high-output activities, but we recognize that these changes don’t work for everyone. Your detailed feedback on the XL and L sizing, especially the sleeve length, upper back volume, and overall proportions, is incredibly valuable. We’re sorry neither size worked out and that the fit felt inconsistent across the range. We’ll be sure to pass your comments along to our product team, as insights like yours help us improve with each release. We also appreciate you giving the garment a try, even though it ultimately had to be returned, and we know how frustrating it can be when it misses the mark. As for the price, technical garments often carry a higher price point due to the advanced materials and construction involved. That said, we understand it’s a personal consideration. If you ever decide to revisit the Delta or explore other styles, please don’t hesitate to reach out to us for detailed measurements or fit guidance. We know sizing revisions can make it tricky to find the right match, and we’re here to help make that process easier. Thanks again for your thoughtful review.
Perfect for higher output activity
No experience with the older Deltas but I’m loving my 2024 Delta 1/2 zip as a standalone on runs below 50F. Definitely better for higher output activity like running, so depending on conditions I wouldn’t expect it to keep me toasty for lower output activities or sitting around. Currently dabbling with more synthetics after a lifetime of wool - with that said no complaints about the new fabric or overall comfort.
great sweatshirt
very nice sweatshirt, I use it for walking around the city and for trips to the mountains as a second layer, although I thought it would be thicker and a bit warmer. The pocket on the chest is a bit for decoration, it is a bit too high, and the iPhone fits into it on the butt and it is uncomfortable with it inside. Overall, I like the sweatshirt - I recommend it.
One of my new faves
I’m wearing this now. I’ve worn it basically every day since I got it. It’s great. I like it because it is so versatile. It can be used for workouts, or unpretentiously with jeans and a t shirt, or ostensibly for rock climbing because you’re wearing Arc’teryx. It blends in in outdoor or urban settings. It looks good. It’s comfortable. What else is there to say.
I ordered a size smaller so it fit snug and tucked
I’ll wear this fleece pull-on for a number of activities. First, for every day activities, and outdoor sports, skiing, fishing, hunting, hiking and running. Since this garment was advertised as a fleece I thought it would fuzzy. That’s the only reason I rated it 4 stars, but I’m happy anyway. I’ll purchase your items in the future.
The perfect mid layer
This fleece is the perfect lightweight garment for backpacking. I use it with a Patagonia or Smartwool base layer under a wind jacket or shell. It keeps me from sweating and can be worn as an outer layer if it is not windy. This fleece is good into the low forties under a shell. It looks so good you can wear it around town.