If you want one jacket that you use in bounds and out, the men's Burton [ak] Hover GORE-TEX C-Knit 3L Stretch Jacket is one of the lightest, most packable shells in the [ak] line.
Because sometimes it's just better to ride in a hoody, 686 made a 10k waterproof, fleece lined tech hoody with a zipper pocket to keep your valuables secure.