Brooklynn Hallwrote a review of Arc'teryx Beta AR Jacket - Women's on May 13, 2019
Familiarity: I've used it once or twice and have initial impressions
Fit: True to size
This I think is one of the cutest jackets from Arc'teryx. I know that is usually not why you pick out such a high-quality option but it doesn't hurt!
This jacket fits me really well and moves with my body. The jacket does not come up when I lift my arms up.
I'm 5'2 and 105 pounds and I typically wear an XS and I am an XS in this as well! It offers extra room in the upper arms so you can wear insulation if needed and not get your sleeves pushed up your arm!
I wish I could have worn this in gnarlier conditions but I just didn't get the chance!
Being an Arc'teryx item with Goretex I know it has been tested in a bunch of different ways about 1000 times! When you want to be dry and stay dry, you should always look into Arc'teryx!
Don't forget you can also retreat fabrics a few times each season to keep that waterproofing at its very best!