I have to reply as I am researching a whole new modern system for myself. I love old-fashioned clothes and my wardrobe has a lot of down and woollen garment in it; but there are many instances where wool and down are just not coping with the conditions I ski and walk pcu level in during the winter. It is too warm here to get the best from down and wool takes too long to dry. Well I know a bit about EPIC, it works but it is expensive and a little heavier than plain nylon or microfibre polyester and the silicon treatment does not clog the pores it is windproof and reasonably breathable, similar in fact to Ventile but doesn’t get too much heavier when wet; a big plus. i believe it will dry out from body heat[- so long as you are not already hypothermic.