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

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.

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.

Will put up on my tik tok but I love the brand maybe I’m being a little generous with review but very thin I mean it’s pretty obvious from picture but extremely thin FyI love brand tho ;)

This one is interesting. It reminds me of a very specific competitor design that I love: another minimalist, half-zip, high-CFM hooded shirt. Fit is true to size, but the cut is slightly more generous/boxy than I expected. That helps with mechanical ventilation, and makes for easy layering under the hoody (e.g. I can layer a silkweight baselayer and alpha hoody under the Ossa). I would prefer a slightly slimmer cut on a piece like this, but that's personal preference as much as a performance issue. I have some doubts about the fabric. It breathes well (very high CFM as far as I can tell), and handles moisture well when new. But there's a lot of elastane in this, which raises obvious long-term durability, fit, and performance concerns. Time will tell. The fabric is stiffer and noisier than I expected (swish swish), with a rough hand - not especially comfortable against the skin, and a little grabby when worn with something like alpha. The stiffness helps the fabric stand off your skin, though, which mitigates the clinginess you can get with some woven nylon wind- and sun-shirts. I REALLY like what Arc'teryx seems to be aiming at here, but I think there's room for refinement.

Love this design. Please make it for women! Men’s sizing the sleeves are too long.

Not too heavy of a layer and folds into its own pocket. Very lightweight.

Great jacket! Fit, material and look are all awesome!