you can squeeze it in a pocket but it's not super compactible like some wind jackets.
however in terms of quality, breathability and comfort over a nice range, i love the rapha vest I own. an absolute staple for fall and spring.
it has two nice usable pockets on back (plenty of stretch)
and even a zipper pocket up front for keys or im not sure what else. anyway it's there
i borrowed one from a friend and decided I needed one within an hour.