I'm with Jarery on his analysis.

in addition to Schoeller or others bicomponent weave softshells, some of the new microweave polyester weave softshells, ( seen in jackets like the Patagonia Dragonfly and Pearl Izumi Optic) packs up significantly smaller than a schoeller softshell and performs at about the same level of breathability with better drying characteristics. not as warm or comfy next to skin, by perform well as a shell with appropriate layers underneath.

the best raincoat strategy is to wear it as little as possible. and you'll be more comfortable in the long run.