I wanted a light, hardfleece that had some rain resistance and was warm. Constructed of Polartec, the Konseal Jacket is warm enough with decent water resistance but was lightweight enough to be active in without overheating.
I often wear the konseal jacket under a hard-shell jacket because of heavy snow/rain.
Highly recommend. Bit pricey though.
This review was written in the old system and had content requirements that are different than reviews written today.