Arc'teryx  Ossa Half-Zip Hoody - Men's

I purchased this because there wasn't a women's equivalent. I sized down, and it ended up being perfect. It's not extremely fitted, so the fabric doesn't stick to your skin when you sweat on high temp days. I took it to Hawai'i and did a 6 mile exposed bluff trail. The sun protection was incredible. No burns, and I only needed to reapply sunscreen to my face. The fabric feels like it would tear easily, but so far it's held up extremely well to my day pack and binocular harness rubbing against it. One of the elastic cuff threads snagged, but only slightly and it's not unraveling. Great for travel and beach days because it packs into the chest pocket - about the size of a pencil case. Takes up very little room!

The Ossa 1/2 Zip Hoody has quickly become one of my favorite pieces . It’s super lightweight and packs down really small, so I can just toss it in my bag and forget about it until I need it. It’s really comfortable to wear while moving and does a great job taking the edge off when it gets a bit chilly or windy. The half-zip makes it easy to cool off or warm up, and the hood is handy without feeling bulky. The only thing I wish it had is a front pocket. Something like a kangaroo pocket would make it perfect. Still, for simple, lightweight hikes, it’s a great go-to layer. I picked up the black version and it's not translucent like the other colors.

I actually bought this jacket as a commuter Summer biking jacket to protect from the sun while still being able to wear my normal work clothes (thus the reason to opt-out of a sun hoody). So far, biking in 90 degree (dry) weather with this jacket has been quite comfortable. In my use, it breathes very well and provides ample coverage to protect from the sun. The fact that it’s highly stowable is a big plus. I took my regular size (not preferring a slim, athletic fit) which fits perfectly as it leaves enough room for airflow without looking sloppy. My only bit of feedback would be to add a minimal drawstring to the waist to be able to dial in the wind protection when the weather changes to be a little cooler in the evenings

The material of this jacket is very interesting. I think this jacket is great for high output hiking

This is my favorite packable windbreaker. I get the comments that the fabric is slightly stiff, but I like it. Super packable. Mine is still new, but it repelled water very well in a quick shower. I know it is not made as a rain jacket and I have hard shells for that. It blocks the wind very nicely. I am a 66 YO male 5 foot seven and 168 pounds and the medium fits great. I do agree with the comments that more pockets would be nice. The full zip version with a pack away hood may be a nice alternative if that is a dealbreaker for some.

I have maybe 20+ Arcteryx pieces and a lot more Patagonia pieces for reference... I was really excited about this product as I have a few Incendo Airshells and plenty of Squamish, Incendo Hybrid and Patagonia similar windshells which are generally great... I was looking forward to the light/minimal/breathability that the Ossa was pertaining to offer as a summer shell so I called into my local Arcteryx store in Manchester to try the Ossa 1/2 zip on... The Jacket and material felt great until I put the hood on..... The worst flappy oversized fitting hood I have ever tried....Made the garment useless.....Actually flopped forward over my eyes so couldnt see:) Even the assistant in the shop and agreed the hood is terrible. I am not sure why any of the other reviewers did not pick up on this unless they only intend using as a fashion garment as oppose to real world mountain use...?

One of my must haves in my pack. The material is very lightweight and breathable. It's very convenient how small it packs down and takes up very little space in my pack. It's a nice layer to wear while hiking and very easy to manage regulating temperatures. Another small pocket would add more convenience but I like the overall design and material thus far!

Great idea but the hood is next to useless... Please remake it with a functional close fitting hood instead of something that will just blow off your head...Why don't you just copy the Incendo Airshell hood.? I have a couple of those and the hood is nearly there and at least functional...

I have the blue version and it is very light, it breathes well, the spf protection was major for me because at the top of the mountain sun hits much harder. Overall this jacket is a must and i recommend pairing it with the konseal pants for total sun protection. 10/10

The black is like wearing a plastic bag, doesn’t breath at all, and the light sand colorway looks like a condom when wearing the top only - definitely needs an undershirt. No good for any high output activity as the material breaths as well as gortex - poor at best